United States, Illinois, Will, Exxon-Mobil Oil Refinery, south of Drummond Road, fenced from main refinery. East of Interstate 55, west of BNSF railroad. "Mobil Dolomite Prairie". West of berm. Thin soil, less than 0.5 meter, over Silurian dolomite, flat bedrock. (WGS84/NAD83).
41.4028 -88.1886
T. 34N, R. 9E, SE1/4 NW1/4 NW1/4 Sect. 27
163 meters
535
Wet-mesic dolomite prairie remnant with Juncus torreyi, Agrostis alba var. palustris, Galium obtusum, Lythrum alatum, Oxypolis rigidior, transition to Typha marsh. Occasional tree about 5-6 meter tall, leaves very glaucous beneath, twigs pale yellow to ashy color.