Pecumsaugan Creek-Blackball Mines
Nature Preserve Area:
3
County:
La Salle
Location and Access:
This site is currently closed to the public. Access for scientific research is by permit only.
Description:
The Pecumsaugan Creek area has beautiful dolomite cliffs, dolomite prairie, upland forest, floodplain forest and savanna communities of the Grand Prairie Natural Division. The preserve is best known for the large abandoned limestone mine and its colonies of bats. Blackball Mine is one of the largest bat hibernacula in Illinois. Five species of bats are known to use the mines, including the federally endangered Indiana bat. Bats in Illinois are strictly insectivorous and one bat can devour up to 4,000 insect pests in a single evening. Generally speaking, bats are the nocturnal counterpart of the diurnal purple martin. Other notable animals in the preserve include a relic population of timber rattlesnake and the mottled sculpin, an unusual fish found in Pecumsaugan Creek. The preserve also provides a variety of habitats for threatened and endangered plants species. Visitors can see many of the unique natural features of this preserve from the I & M Canal towpath, however, entrance to the preserve requires a permit.
Ownership:
Illinois Department of Natural Resources
Dedicated:
July 1984
Size:
211.17 acres with buffer
Topographic Quad:
La Salle
Topo Map:
Directions:
For further information:
Illinois Department of Natural Resources, Natural Heritage Biologist, Silver Springs State Park, Dan Kirk, 1360 Fox Road, Yorkville, IL 60560(630) 553-1372.
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