Stone arch bridge (Black Partridge Creek) across Black Partridge Creek in the Cook County Forest Preserve NW of Lemont, Cook County, IL. Lemont Rd. N. 0.9 miles from jct with Illinois St. in Lemont, W. on Bluff Rd. 1.3 miles to the bridge on the N. side of the road. (11-14-04, N41 40.883 W88 01.641)