United States, Illinois, McHenry, W. McHenry IL 7.5 min quad. E side IL Rt 31 (FAU 336), opposite Terra Cotta Industries headquarters building. Within Terra Cotta Real Estate development, N edge of cleared construction entrance.
42.276472 -88.28525
42° 16' 35.3" N 88° 17' 6.9" W; TRS: T44N R8E sec 22 W/2 of SE/4, NW/4, NW/4, SE/4