Explore

Three miles east of Clarksville along south side of country road.

UIC Pharmacognosy Field Station, Lisle, IL.

At the east edge of Milton, along the north side of US Highway 90.

Just north of the Morton Arboretum, on the Hidden Lake Forest Preserve.

Near Elwood, at the Joliet Army Training Area - Unit 5

At west edge of Aledo, on Route 17.

About 5 miles west of Cave in Rock, at Tower Rock Recreation Area; in the picnic area.

Dickson Mounds Museum

Along east side of Locust Creek, ca. 3.5 miles southwest of Pollock.

Mark Twain National forest. Along hwy 63, ca. 6 miles south of hwy W.

In Buffalo, near the U.S. Coast Gaurd Station at the mouth of the Buffalo River; on the Times Beach dredged disposal area.

Snyder Grove Park.

St. Francis National Forest, on Crowley's Ridge southeast of Marianna. South of Bear Creek Lake, vicinity of Bear Creek Recreation Area.

About 1 mile north of Sonora, along I-65, at the southbound rest.

South of Douglas.

On the Cupola Pond Natural Area, at edge of sinkhole pond.

Along Route 32, about 4.5 miles west of Howes Mill, 0.6 miles east of its junction with Route 72.

In Lincoln, at Edward R. Madigan State Park; (aka Railsplitter State Park)

Near Macomb, at the Horn Lodge recreation area.

On roadbed of Millsap Bridge, spanning Cuivre River ca. 2 miles north of Truxton.

Pensacola, St. Michael's Cemetery.

Near Wilmington; at Forsythe Woods.

East of Roscoe. Roscoe TWP; Burr Oak Road Woods.

Krape Park. Freeport West Quadrangle, 7.5 minute series. Southwest outskirts of Freeport.

About 3 miles south of Mt. Carmel, along the east side of Route 1.

About 6 miles east of Vandalia at the Crane Pond State Game Area, off the west side of Route 40

Near Chillicothe, at Singing Woods Preserve.

About 2.5 miles west of Toledo, along Brissel Ridge.

1 mi S, 3.5 mi W of Monticello. Allerton Park.

Just northeast of Makanda at Giant City State Park, off the south side of Makanda Road.

Near Chatsworth, along a railroad line.

In Honey Lake, at Delmonte Lake, off of dirt road, north of Honey Creek.

About 1 mile east of Viola, along Route 17.

About 0.1 mile east of Allenton, exit (I-44), along small road.

About 6 miles northeast of Paris.

Pea Ridge State Forest. Along south side of Route 185, about 1.3 miles south of N.

Lake of the Ozarks State Park. Along group camp road.

North of Lisle, on the Morton Arboretum, on flagstone at Ill. 53 bridge over E-W connecting road.

Near Crete; at Goodenow Grove Forest Preserve, at the Plum Creek Nature Center, along the Wispering Oaks Trail.

East of Evansville, at the Gibbs Lake County Park horse trailer parking area

Southeast of Oregon, 2.6 miles from junction with U.S. 59 and Rt. Y, along Hwy U.

On Illinois Rt. 2, just north of Dixon.

"Berry." Above Niangua River.

Bartlesville. Johnstone Park. Caney River bottomlands.

4.5 mi W, 1 mi S of Walhalla. Pembina Gorge.

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

Buzzard'€™s Bluff, a massive west-facing sandstone cliff above the east side of the Sac River, ca. 1.5 miles north of hwy 54.

Near Postville, at the Grand Meadow Cemetery along Rt. 52/18, 3 miles east of the Rt. 51 junction.

Ca. 1.5 miles north of north edge of Nevada, east of Sulphur Springs Branch

In Schneider; at the picnic area and old homesite north of the ditch.