Explore

Mark Twain National Forest. Exposed dolomite ledge in road cut along west side of highway UU, about 3.9 miles north of highway 125.

Cuivre River State Park, near edge of summit of Frenchman's Bluff, an extensive high limestone bluff along Cuivre River.

Stackton State Park. Exposed dolomite blufftop along shore of stockton lake, just south of highway 215.

Lake of the Ozarks State Park. Along road to Camp Rising Sun.

In old fencerow on west side of March Hill; Walpole.

Along upper west side of Dry Fork, ca. 6 miles south of Warrenton.

At Pounds Hollow,

Along head of large canyon system locally known as Wolf Hollow.

Clark Reservation State Park, on limestone pavement of Table Rock, west of Green Lake, near Jamesville.

On the Mingo Refuge, along main loop along north facing bluff.

On Grand Detour Road.

About 1 mile north of Clark Center, on Penn Central R.R. track cut.

Bennett Spring State Park, near summit of ridge behind Sleepy Hollow Cabin area.

Ca. 0.1 miles north of Bear Creek Fen, along east side of Bear Creek, north of Old Cadet Road.

Shut In Mountain, ca. 1.5 miles north of junction of hwys H & NN. Just below summit on north side of Shut In Mountain

Seneca Hill Prairie

In ravine on Dora Williams tract, ca. 2.5 miles SE of Dixon, along tributary to Mill Creek.

Mark Twain National Forest. South-facing sandstone bluff along north side of Dry Creek, ca. 0.1 miles east of hwy AP.

Behind park shop buildings, ca. 0.3 miles west of spring branch, just east of Dallas/Laclede County line.

About 15 miles east southeast of Ava, along dolomite bluffs and flood plain bordering the west side of Bryant Creek, at DOC public access on the Rippee Wildlife Area.

Vendes: La Pierre Beaulante, Ile de Yeu.

Poague Wildlife Area 4.5 miles northwest of downtown Clinton.

Bennett Spring State Park. Bordering power line swath on hill above Park Superintendent residence.

Niobrara Valley Preserve. Along north shore of Niobrara River, east of preserve headquarters.

Anmicon Falls. 3 miles northwest of Wentworth.

Walnut Point State Fish and Wildlife Area, ca. 5 miles north of Oakland along Embarras River; in picnic area.

North of Lisle, at the Morton Arboretum.

Apple River Canyon State Park. Elizabeth Topographic Quadrangle, 15 minute series. Eight miles northwest of Stockton and five miles southeast of Apple River. At cross road in park.

On upper steep slope above Ushery Campground.

Apalachicola National Forest, along County Road 368, west side of Bradwell Bay Wilderness Area, entrance of Florida National Scenic Trail, west side of Forest Service Road 314,

At Valmeyer.

Mark Twain National Forest. Along highway M near Missouri Highway Department radio tower at Flat.

At edge of field along north shore of Lamine River at Robert's Bluff.

Near Hesper, on County Road A14, 1.5 miles east of Hesper and 0.7 miles north; 0.5 mile west of road.

East of hwy 59, ca. 0.1 miles south of Nacogdoches.

Along east shore of Moreau River, just north of highway 50.

Near West Chicago at the Timber Ridge Forest Preserve

About 1.5 miles southwest of Janesville, about 0.3 miles south of Hwy U, along James River.

At mid-slope of east side of Spring Valley, ca. 0.2 miles south of confluence with Niangua River.

Along south side of highway 54, 0.6 miles west of W.

Along south side of highway AA, about 0.1 mile east of Route 5; at north edge of Grovespring.

Along north side of Pomme de Terre River, just east of highway 254; at south edge of Hermitage.

In Festus, along the east side of U.S. 61, opposite wayside park.

On Mount. Pisgah.

Just northwest of Gorum on the Kisathchie National Forest, at the Bayou Cypre overlook.

Along north side of Rt. 9, ca. 11 miles NE of Keene.

Giant City State Park, south of Carbondale.

Springs Natural Area.

About 1.5 miles northeast of Baxter, on the Mark Twain National Forest along north side of Bread Tray Mountain.

Along upper wall of old quarry along south shore of Marmaton River, east of highway H, about 0.5 miles north of Deerfield.