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NATURAL AREAS CONFERENCE

Conference Trips

1. Meramec River - Freshwater Mussels and Aquatic Life: The Meramec River is one of the few remaining free-flowing, large rivers in the Midwest. In the mid to late 1970's, conservationists challenged the U.S. Army Corps of Engineers and stopped the construction of a dam that would have created a reservoir in the middle reaches of the river. This river is home to almost 2/3 of Missouri's 65 mussel species and contains the most diverse mussel assemblage of any Missouri river. Dr. Chris Barnhart, a mussel researcher, and others will lead a six to seven hour canoe trip exploring the variety of aquatic life in the river while enjoying the beauty of an Ozark fall day. We will stop at several known mussel beds, giving participants the opportunity to search for mussels, fish and crayfish by wading, and for the adventurous, by snorkeling. Additionally, in the event of extremely cold or inclement weather and no one wants to get wet, we will have specimens collected prior to the trip available for viewing. Participants should wear clothing and shoes that can get wet and be prepared to wade or swim. Lunch and snacks will be provided on the river.

Maximum Number of People: 20

Length: Full day

Travel Time One-way:1 hour

Difficulty: Moderate float trip

Required Equipment: Clothes to get wet in, change of clothes, water shoes, dry bag; mask and snorkel are optional, some will be provided to share

2. St. Louis Riverfront Geology Tour: This urban geology walking tour offers participants an interesting historical/geological perspective of the St. Louis riverfront. A brief overview of St. Louis geology will be offered. No natural outcrops remain in the field trip area, so participants will examine the stone and geologic materials used to construct about 12 major buildings and structures. At each stop, the stone and its source will be identified when possible; mining, masonry, or construction techniques described; suitability of the stone discussed; and historical perspective offered. While the field trip area is small, the diversity of geologic materials is great: more than 20 different kinds of rock (sedimentary, igneous, and metamorphic) from 7 states and one foreign country, as well as structural cast iron and two kinds of brick. Buildings range in age from 1831 to the early 1900's. Participants will walk a total of about two miles.

Maximum Number of People: 30

Length: 1/2 day

Travel Time One-way: 30 minutes

DifficultyMinimal to moderate walk of 2 miles

Required Equipment: Comfortable shoes, rain gear

3. Missouri Botanical Garden: The Missouri Botanical Garden is not just one of the premier horticultural institutions in the United States, it is also a major center of botanical research. Participants will get a tour of the Garden's Monsanto Research Center, where research staff curate one of the largest herbaria in the world and conduct inventories and conservation programs of both local and international scope. Then, there will be an orientation of the main grounds, followed by plenty of time to explore on your own. Participants need to wear comfortable shoes for walking and be prepared for the possibility of rain. Conference attendees who wish to make more extensive use of the herbarium facilities should contact George Yatskievych (314-577-9522; george.yatskievych@mobot.org) in advance.

Maximum Number of People: 45

Length: Afternoon only

Travel Time One-way: 30 minutes

Difficulty: Minimal

Required Equipment:Comfortable shoes, rain gear

4. Mississippi River Mussel Sampling Trip: There are close to 300 mussel species found in North American. Of these, over half are either extinct, watch listed, or listed as endangered or threatened (federal and state). The Upper Mississippi River System (main stem) has historically hosted 50 species of mussels. At present, approximately 30 species remain extant in the river. Because of the mussels' ecological importance and their plight, resource managers are beginning to take an active interest in these "often ignored" animals. This field trip will serve as not only a lesson in mussel biology and modern sampling techniques but also as a glimpse into the history of human utilization of mussels and harvesting practices. Participants will experience, among other things using a brail, live mussel identification, "grubbing" (sampling shallow areas using feet and hands), and the beauty of being on the Mississippi River. Participants should bring clothing appropriate for the weather conditions. Chest waders or hip boots are optional.

Maximum Number of People: 13

Length: Afternoon only

Travel Time One-way: 1 1/4 hours

Difficulty: MInimal to moderate

Required Equipment: Clothes and shoes to get wet; change of clothes, chest waders and hip boots optional

5. Onondaga Cave State Park: Onondaga Cave State Park, managed by the Missouri Department of Natural Resources, is most noted for Onondaga Cave, a National Natural Landmark. This field trip, however, will be visiting two of the other outstanding natural features of this 1,300-acre park, Cathedral Cave and Vilander Bluff Natural Area. Cave temperature is about 57F (13C). We will be outside during both the hike to Cathedral Cave and at Vilander Bluff. Vilander Bluff does not have a developed hiking trail. Dress appropriately for hiking two to three miles and for the weather.

Maximum Number of People: 30

Length:Full day

Travel Time One-way: 1 3/4 hours

Difficulty: Moderate

Required Equipment: Flashlight, hiking boots, rain gear, long pants

6. Tour of Shaw Arboretum's Natural Community Restoration and Reconstruction Projects: Shaw Arboretum, a nature reserve of the Missouri Botanical Garden, is located in Gray Summit, Missouri, about 40 miles from downtown St. Louis. The 2,400-acre Shaw Arboretum is a National Environmental Education Landmark and offers more than 10 miles of hiking trails through Ozark border landscape, environmental education classes for children and adults, and numerous natural community restoration and construction projects. This field trip will focus on Shaw Arboretum's 20-year-old tallgrass prairie and three-year-old wetland construction projects, and dolomite glade and woodland restoration projects. In addition, participants can enjoy Shaw Arboretum's museum on the history of land use in the Meramec River Valley, Whitmire Wildflower Garden, and Osage Garden.

Maximum Number of People: 40

Length: Full day

Travel Time One-way: 1 hour

Difficulty: Moderate

Required Equipment: Hiking apparel, rain gear, day pack

7. Confluence Canoe Trip: This full day canoe trip begins on the Missouri River 17 miles above its confluence with the Mississippi River and ends at the junction of these two great and historic waterways at Columbia Bottom Conservation Area. Your guides will be two itinerant river rats masquerading as MDC Natural History Regional Biologists. Just downriver from our put-in, we'll stop and explore Pelican Island Natural Area, which features a large sand and gravel bar in addition to other Big River communities still recovering from the Great Flood of 1993. We'll have lunch on Cora Island, where Captain Clark and the Corps of Discovery spent their first night on the Missouri River on their way to rendezvous with Captain Lewis at St. Charles. We'll wrap up the trip by riding the waters of the muddy Missouri into the mighty Mississippi, beaching the canoes on the sands of Columbia Bottom. Participants will have the opportunity to help carry canoes up the river bank and back to the trailer, approximately 200 yards. Canoes, paddles, life vests, foam cushions, and a chase boat will be provided. Weather is variable and may be cooler on the river, so participants should dress accordingly - watch the Weather Channel before leaving the motel! A hat and sunscreen are recommended. Personal gear such as sunglasses, binoculars, camera, wallet, and other valuables should be kept in a dry bag, waterproof waist pack, etc. Dry bags will not be provided. This is not a field trip for beginners; participants need to know how to handle a canoe and how to swim. A brief discussion of Big River "do's and don't's" will be provided at the put-in site. In the event of severe weather or high water, the trip will be canceled.

The Missouri DNR is currently operating Cathedral Cave as a show cave with a lantern tour. It was previously open to the public under private ownership in both the 1930's and the 1970's. At present, only about 1500 people per year visit Cathedral Cave, so the wildlife is more in evidence than in a more heavily traveled cave. The morning will feature a tour of Cathedral Cave (on a trail - no technical spelunking) and we will discuss the management of a cave as a natural system. This discussion will include: the Cathedral Cave Missouri (CCM) Seismic Station which is in the cave; attempts to restore the cave environment by manipulating the cave's entrances (one natural, two artificial); a cave restoration project where volunteer cavers are removing old concrete, wiring, and other litter, and attempting to repair broken speleothems.

Lunch will be at the Park's Visitor Center where the readout end of the CCM Station can be viewed along with other park and cave-related exhibits.

After lunch, we will travel to the Vilander Bluff Natural Area, a satellite unit of the Onondaga Cave State Park, which lies seven miles downstream from the main unit. The Meramec River passes through the 206-acre Vilander Bluff NA, which also contains one of the most prominent and impressive vertical cliff exposures in the Upper Ozarks Section and undoubtedly the highest along the Meramec River. The course of the river is an excellent example of an incised meander, and the bluff is home to virgin eastern red cedar (Juniperus virginiana) stands that are more than 300 years old. These cedars host a disjunct population of Flavoparmeila rutidota, a lichen which is known from only two other sites in Missouri. The area is also the type locality for another lichen, Punctelia missourienses. The area contains a variety of natural communities including cliffs, talus, forests, savannas, and caves. It contains a Blue Heron rookery and is home to a number of species of concern for all or part of the year.

Maximum Number of People: 30

Length: Full day

Travel Time One-way: 1 hour

Difficulty: Moderate to difficult

Required Equipment: Clothin for canoeing, hat, sunglasses, sunscreen, dry bag


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. Victoria Glades: Victoria glades are components of a large glade system located just southwest of St. Louis. The harsh glade environment created by the shallow soils overlying dolomite bedrock supports a unique flora and fauna. Large populations of the sporadically distributed Fremont's leather flower occur in the area. Other interesting plants include blue wild indigo, American aloe, downy gentian, silky aster, and blazing-star. A well-represented glade fauna includes collared lizards, tarantulas, plains scorpions, and black widows. On-going management includes cedar felling and prescribed burns. Participants can expect to spend five to six hours exploring the glades and should wear long pants, sturdy boots, and bring water and insect repellant. Lunch will be provided on site. Hiking will be moderately difficult.

Maximum Number of People: 24

Length: Full day

Travel Time One-way: 1 1/2 hours

Difficulty:Moderate

Required Equipment: Water bottle, long pants, sturdy boots, rain gear, day pack, insect repellent

9. Southwestern Illinois Sinkhole Plain:
The Sinkhole Plain covers about 1,228 square miles in southwestern Illinois, including most of Monroe County, and parts of St. Clair, Randolph, and Madison Counties. The landscape is riddled with underground cracks, crevices, and caves. The surface is pocked with sinkholes numbering an average of 230 per square mile; over 10,000 in all. This field trip will tour the sinkhole plain and view some of the threats to groundwater contamination that are present in the area. A stop will be made at Falling Spring, a large karst spring in St. Clair County. Camp Vandeventer will be visited. This is a Natural Area Inventory Site with springs, caves, and a large karst window. The final stop of the day will be a trip to Illinois Caverns. The cave tour will be led by the Illinois Caverns Site Interpreter and other Illinois DNR staff. The cave passage is muddy and slippery. Participants will need to bring clothing and footwear suitable for walking in water and slick conditions. They will also need 3 dependable sources of light and a hard hat.

Maximum Number of People: 24

Length: Full day

Travel Time One-way: 1 1/2 hours

Difficulty: Minimal to moderate

Required Equipment: Hard hat, headlamp, clothes to get muddy in, change of clothes, boots with good soles, two other sources of light, day pack

10. Pere Marquette State Park: Journey along the Alton Palisades and the Mississippi River as we view diverse habitats that make up the Big Rivers Resource Rich Area of southwest central Illinois. Following an introduction of the site, we will hit the trails at Pere Marquette State Park. The trail will ascend up the hill along the limestone bluff and mature oak-hickory forest to spectacular views of the Illinois River valley. Look for migrating raptors and waterfowl as we survey the loess hill prairies on top of the bluff. We will discuss natural and man-made forces that influence vegetation on the site and efforts that natural area managers are implementing to stabilize and reduce the loss of hill prairie. This site is rich in geologic and archaeological studies, so those aspects will be explored. We will hike for 2 hours in steep terrain but will stop frequently. Wear comfortable but sturdy shoes and dress in layers as temperatures could be from the 40's to 80F. Bring binoculars and any field gear you wish to carry.

Maximum Number of People: 24

Length: 3/4 day, mostly hiking

Travel Time One-way: 1 hour

Difficulty: Moderate

Required Equipment: Sturdy hiking boots, rain gear, day pack

11. Fults Hill Prairie and Kidd Lake Marsh: Fults Hill Prairie Nature Preserve, located in Monroe County, Illinois, encompasses one of the largest complexes of high quality loess hill prairie remaining in Illinois. The site is home to a variety of plants and animals rare or absent elsewhere in Illinois. Located atop the steep southwest-facing Mississippi River bluffs, Fults Hill Prairie is a physically-challenging destination, but the sights are worth the effort. We will examine the vegetation of prairie, forest, and glade communities and discuss management issues and strategies. We will have lunch on the prairie where we have a spectacular view of the Mississippi Valley and can watch for hawks and vultures traveling along the bluff line. After the prairie hike, we will explore the edges of Kidd Lake Marsh at the base of the Fults bluffs. This wetland provides a refuge for waterfowl and a good opportunity to see some interesting birds. All participants should be prepared for a somewhat strenuous hike by bringing sturdy shoes, water, and a pack for personal belongings.

Maximum Number of People: 15

Length: Full day

Travel Time One-way: 1 1/2 hours

Difficulty: Difficult

Required Equipment: Hiking boots, day pack, water bottle

12. Fisher and Mushroom Caves: Cave ecologists Bill Elliott and David Ashley will lead a tour of Fisher Cave, which has a good trail, pointing out several species of bats, salamanders, invertebrates, speleothems, and other natural features. There may be an opportunity for a bit of off-trail caving. After lunch, we will explore Mushroom Cave, which requires wading in a shallow stream. We will see bats, pickerel frogs, salamanders, isopods, and amphipods. Both caves are protected with special gates, which will prompt discussion of management methods for the protection of cave resources. Examples of cave studies in Missouri will be presented.

Maximum Number of People: 20

Length: Full day

Travel Time One-way: 2 hours

Difficulty: Moderate to difficult caving

Required Equipment: HIking boots you don't mind getting muddy and wet, long pants or coveralls, change of clothes, 4 alkaline AA batteries, 2 sources of light, water bottle, day pack

13. Katy Trail Interpretive Bike Ride: Participants will explore the Missouri River Valley and Ozark Border woodlands including the Weldon Spring Hollow Natural Area. Participants will enjoy a 10.5 mile bike ride from Augusta (rich in German-American culture) to the Weldon Spring Conservation Area via Katy Trail State Park, the longest rail-trail conversion currently open in the U.S. Transportation will depart the hotel at 9am and will travel approximately 40 minutes (via US Hwy 40 west and MO Hwy 94 west) to Augusta. Bike rental arrangements are made with the Touring Cyclist. Participants will travel the nearly level Katy Trail to Weldon Spring, arriving around noon for box lunches. A short walk into the Weldon Spring Hollow Natural Area will allow everyone to stretch his or her legs from the ride, before returning via bike at 2pm. Transportation departs Augusta around 3:50pm and returns to the hotel at 4:30pm.

Maximum Number of People: 25

Length: Full day

Travel Time One-way: 1 hour

Difficulty: Moderate

Required Equipment: Clothing appropriate for biking, rain gear, day pack

14. Glades Galore: Danville and Graham Cave Glades, located a few miles north and south of I-70 in Montgomery County, offer excellent examples of managed and protected glade habitats. Mike Leahy, Regional Biologist for the Missouri Department of Conservation will lead you on a 2-mile loop through Danville CA to show you several natural communities. Foremost are limestone glades that support plant communities of little bluestem, side oats gramma, pale purple coneflower, aromatic aster, and the state- listed prairie dandelion. In addition, you will see limestone and sandstone woodlands, small sandstone overhangs with Forbe's saxifrage, and headwater creeks with heart-leaved plantain. Participants will spend two hours roaming these habitats observing the flora and fauna then continue on to Graham Cave State Park for lunch and a tour. Wallace Keck, District Interpreter for the Department of Natural Resources, will provide interpretation on site at Graham Cave State Park. Graham Cave is the site of prehistoric human occupation over 10,000 years ago and is a National Historic Landmark. The park also features excellent sandstone and dolomite glades. The group will participate in a fall species inventory, as well as a search for Mountain Spleenwort, and a variety of Ladies Tresses previously identified from the area and now possibly extirpated. The tour includes 1.5 miles of hiking to special areas. Participants should bring a day pack to carry their box lunch and field study tools (binoculars, field guides, notebooks, etc.).

Maximum Number of People: 24

Length: Ful day

Travel Time One-way: 1 1/2 hours

Difficulty: moderate

Required Equipment: HIking boots, rain gear, water bottel, day pack

15. Urban Natural Areas in North City St. Louis: The North City neighborhoods of St. Louis contain the largest amount of open space and natural areas in the city. These neighborhoods also are the heart of the city's black community and the focus of ongoing debates about what is needed to form a sustainable community. Spend a pleasant fall day visiting five sites that show a range of opportunities for natural area management in inner city neighborhoods and learn about grass roots efforts to involve local residents in management projects on these unique sites. Our trip will start at the Pruitt-Igoe housing project site, a large ruderal site that has developed into a significant wildlife habitat. We will visit one of the largest open spaces in the city formed by O'Fallon Park, Bellefontaine Cemetery, and Calvary Cemetery, a 400-ha area that includes a remnant prairie and extensive patches of remnant forest. Following lunch we will hike on Riverfront Trail. This trail provides access to floodplain forests along the Missouri River, abandoned industrial areas, and railroad right-of-ways that have become important habitat for grassland birds, and sites that have been the focus of restoration efforts by local residents and businesses. Throughout the trip, we will learn how these five sites have been central to grassroots efforts to provide day-to-day contact with nature, develop sustainable communities, and to encourage locally- based economic development.

Maximum Number of People: 23

Length: Full day

Travel Time One-way: 1 hour

Difficulty: Minimal

Required Equipment: Comfortable shoes, day pack

16. Riverlands Project and Marais Temps Clair Conservation Area: Relax and enjoy a guided auto tour led by Missouri Department of Conservation and U.S. Army Corps of Engineers staff. Participants will view wetland wildlife and learn about wetland habitat management in Missouri. Marais Temps Clair CA was once part of an expansive marsh ranging from St. Charles, MO, to Alton, IL. In French, Marais Temps Clair means "fair weather marsh." The Marais Temps Clair marsh is an old oxbow of the Missouri River and was formed prior to the arrival of European settlers. It is located in a river floodplain, and serves as a resting and feeding place for waterfowl. Participants will then be led on a tour of the Riverlands Environmental Demonstration Area (EDA), a 1,200-acre prairie-marsh restoration area located adjacent to the Melvin Price Locks and Dam near Alton, IL. The Rivers Project, established in 1988 by the USACE, recognizes and manages the multi-purpose use of 110,000 acres of public lands and water. The EDA exemplifies a balanced management approach between sustaining the river as a nationally significant transportation corridor and recognizing the environmental attributes of the area. The project utilizes the river's continuing influence to create a bottomland-wet prairie and marsh akin to that, which existed prior to settlement of the area. While visiting the Rivers Project, one of the Natural Resource Specialists will guide you, stopping at areas with significant features. Participants will have the opportunity to discuss the development of restoration projects in an informal setting throughout the tour, with a formal question and answer session at the Riverlands Environmental Learning Facility following. While no special equipment will be needed, participants are encouraged to dress appropriately for being outdoors in the weather, and to wear comfortable shoes. For the outdoor enthusiast, bring a pair of binoculars or spotting scope, as Riverlands EDA is locally and nationally recognized for wildlife viewing opportunities.

Maximum Number of People: 23

Length: Full day

Travel Time One-way: 3/4 hour

Difficulty: MInimal

Required Equipment: comfortable shoes, rain gear

17. Weldon Spring Conservation Area: Weldon Spring Conservation Area is located west of St. Louis near the town of Weldon Spring, Missouri. It is part of a 16,918 acre contiguous tract of public land. The area is rich in natural features: in addition to the Missouri River with its rugged limestone cliffs, the area contains a unique 385-acre natural area that will be the primary focus of this trip. The NA has dry limestone cliffs and bluff escarpments that extend one mile along the Missouri River. Participants will have the opportunity to explore the area and observe some of its diverse plant community..

Maximum Number of People: 23

Length: Full day

Travel Time One-way: 1 hour

Difficulty: Minimal

Required Equipment: Walking shoes, rain gear, day pack

18. Managing the Meramec's Mosaic: Since its establishment in 1926, the 7,000 acres of Meramec State Park have been a haven for Ozark biodiversity. We will begin our exploration of its diverse habitats by canoeing into the park on its most spectacular resource, the Meramec River. Although the Meramec is considered suitable for beginning canoeists, the weather will probably be unsuitable for getting wet. Consequently, this trip is recommended for experienced canoeists.
During our float, we will examine and discuss some of the river's 125 fish species, 44 mussel species, 9 turtle species, and various other aquatic faunas. Participants will have the opportunity to learn how to use casting nets to sample fish in a portion of the river that we will be nominating as part of a new 400 acre natural area.
We will also be hiking to the top of Butterfly Bluff and exploring a half-mile of the glades and savannas also being nominated. Here, we will look at mammals, scorpions, reptiles, vegetation, and the management practices used to enhance and maintain the area's rich biodiversity. The finale will be a stop at the site where the Meramec Dam was under construction, and we'll discuss the environmental movement that shut down the dam and kept the river unshackled. The temperature in October on the river may vary between 40 and 80 F, so participants should bring appropriate clothing, as well as sturdy shoes for the hike up to the bluff. Cameras, binoculars, wallets, and other personal items should be carried in a dry bag; dry bags will not be provided.

Maximum Number of People: 30

Length: Full days

Travel Time One-way:1 1/2 hours

Difficulty: Moderate

Required Equipment: Clothes and shoes to hike in and/or get wet, rain gear, dry bag, change of clothes

19. Forrest Keeling Nursery and NRCS Plant Materials Center Tour: At Forrest Keeling Nursery, you will see a multi-step tree production program built around a system of air root pruning to solve problems associated with a wide variety of very desirable but traditionally difficult to grow oaks. This system (RPM) has accelerated the growth of oaks to grow as fast as native trees such as ash or locust, plus acorn prodution has been observed on many 3-year old planted trees. At the NRCS pPlant Material Center, you will get to see first-hand conservation plant research for Missouri, Iowa and Illinois. Many varieties of woody plants and warm season grasses have been developed at this site. Learn how this can help restore natural areas to historical conditions.

Maximum Number of People: 40

Length: Full day

Travel Time One-way:1 1/2 hours

Difficulty: Minimal

Required Equipment: Comfortable shoes, rain gear

20. Lincoln Hills Natural Area/Cuivre River State Park: The Lincoln Hills Natural Area, within Cuivre River State Park, is a large and diverse example of the Lincoln Hills landscape within the St. Louis metropolitan region. This field trip will look at some of the research, restoration management, and threats dealt with in attempting to protect a large natural area in a fragmented landscape near a large urban area. Research includes birds, deer, and invertebrates. Management issues include exotic species control, prescribed burns, and deer. Participants should wear clothes and footware appropriate for light to moderate hiking.

Maximum Number of People: 45

Length: Full day

Travel Time One-way: 1 1/2 hours

Difficulty: Minimal to moderate

Required Equipment: Sturdy hiking shoes or boots, rain gear

21. Big River Fish Sampling: Fisheries sampling gears will be demonstrated on the Mississippi and Illinois Rivers near Grafton, IL. Participants will be on board boats for electrofishing and netting demonstrations. This trip will highlight the diversity of the fish communities in this unique natural area. Participants will meet at Beasley's Fish Market after the trip for a lunch of fresh river fish.

Maximum Number of People: 15

Length: Full day

Travel Time One-way: 1 1/2 hours

Difficulty: Minimal

Required Equipment: Clothes and shoes appropriate for boating, rain gear

22. Wine Country Tour: We will depart from the hotel in St. Louis and take an informal, relaxing trip to explore the wine country of Augusta, Missouri. A visit to Augusta offers a scenic enjoyment that is just as plentiful as the wines you'll be tasting. The Augusta wine area has the distinction of being the first designated wine district in America. The vineyards, nestled in the rolling hills along the banks of the Missouri River, have been recognized for their superior quality of grapes since the 1800's. You will be provided a continental breakfast in route to the wineries. Then, you will be able to visit three wineries, enjoy a delightful lunch at one of the wineries, and be back in St. Louis in time for dinner.

Maximum Number of People: 20

Length: 3/4 day

Travel Time One-way: 3/4 hour

Difficulty: Minimal

Required Equipment: Comfortable shoes, taste buds, valid drivers license

23. Geology and Natural Communities in the St. Francois Mountains: The St. Francois Mountains region is unique geologically and in terms of natural communities. The region is a geologic terrain made up of exposed knobs of 1.4 billion year old igneous rocks surrounded by later dolomite and sandstone. This geologic terrain supports the unique St. Francois Knobs and Basins Ecoregion of the Ozark Highlands. Sites on this field trip will explore the interrelationships of underlying geology and natural communities. Protection of the geology and ecosystems of these sites will be a feature of the trip.

Hughes Mountain Natural Area features igneous glades and upland oak-hickory-cedar forest. Nicknamed the "Devil's Honeycomb", the rhyolite bedrock exhibits polygonal jointing unique in Missouri. Little bluestem, prickly pear cactus, rushfoil, pine weed and rough buttonweed are common glade plants. The site is managed by the Missouri Department of Conservation.

Elephant Rock State Park (a geologic natural area) will be our scenic site for lunch. Elephant Rocks is a granite tor (or knob-like exposure) formed by active geological weathering processes. The Graniteville granite, exposed at the surface, weathered along vertical and horizontal joint planes. Weathering formed the "elephants", or residual boulders of granite, as well as natural depressions. The site is home to oak- hickory forest and shrubby barrens.

Millstream Gardens is another natural area controlled by the underlying geology. The igneous shut-ins are part of the St. Francis River Natural Area. The spectacular stretch of shut-ins are a significant geological feature. The St. Francis River supports a great variety of life, including the rare eastern slim minnow and several species of crayfish.

Maximum Number of People: 23

Length: Full day

Travel Time One-way: 2 1/2 hours

Difficulty: Moderate

Required Equipment: Sturdy hiking shoes, rain gear, day pack

24. Ancient Geology and Glacial Relicts of the LaMotte Sandstone Region: The LaMotte Sandstone region contains the oldest sedimentary rock in Missouri. Hickory Canyons Natural Area, Hawn State Park, and Pickle Springs NA are three places to view the unique geologic features and glacial relict plants characteristic of this area. Field trip participants will spend time at each of these sites to help give them a landscape perspective on the unique features of this region. A geologist will accompany the field trip to explain the sandstone formation and point out other geologic features of note such as the igenous rock outcrops along Pickle Creek. Plants associated with more northern climates, presumable brought during the Ice Age, can be viewed here. Participants will eat lunch at Hawn State Park. They should wear sturdy walking shoes and may want to bring a loupe or binoculars.

Maximum Number of People: 30

Length: Full day

Travel Time One-way: 2 hours

Difficulty: Minimal to moderate

Required Equipment: Sturdy walking shoes/boots, rain gear, day pack

25. Historical St. Louis: What was the St. Louis area like before European settlement? How did this landscape influence patterns of settlement and industrial development? Join us as we visit some local sites that offer glimpses into the past character of the landscape and its role in shaping local history. Learn how the fabric of our landscape has shaped our heritage and how people have always played a role in shaping the post-ice age landscape. This program will be a bus tour with several stops for walking trips.

Maximum Number of People: 30

Length: 3/4 day

Travel Time One-way: bus tour

Difficulty: Minimal

Required Equipment: Walking shoes

26. LaRue-Pine Hills/Otter Pond Research Natural Area: This full-day trip will be a natural history sampler at one of the outstanding NAs in the Midwest. This 2585-acre RNA on the Shawnee National Forest in southern Illinois is known for its plant and animal diversity, dramatic limestone bluffs, dry-to-xeric oak-hickory-pine woodlands and swamps. At each of several stops, researchers will join the group to share their findings about forest changes following prescribed burns, insect life histories, nesting habits of wood ducks and snake diversity. This area is also well-known for the migration of snakes between their summer habitats in the bottomlands and their winter hibernacula in the limestone hills and sightings on the "snake road" are possible. Lunch stop is atop the massive limestone bluffs overlooking the Mississippi River flood plain and its complexes of marshes, shrub swamps and deepwater sloughs. An optional, rugged hike will ascend the bluff from the bottomlands along a trail.

Maximum Number of People: 12

Travel Time One-way: 3 hours (early departure; return after 6 pm)

Difficulty: Some walking in the woods, on roads; optional hike strenuous on uneven terrain.

Required Equipment: Hiking boots and clothing ,day pack, water bottle