United States, Illinois, Cook, Sidney Yates Flatwoods Forest Preserve.
Sidney Yates Flatwoods Forest Preserve, Edgebrook (Chicago). West side of Caldwell Ave., 1 mile north of Devon Ave. South on trail across street from N. Caldwell/N. Loleta Aves. intersection for 192' and west 125'. T41N, R13E, Sect. 32.