United States, Illinois, Will Co., Lockport; E side of Des Plaines River; W of Joliet I&M Canal Trail #30 and State Street; NE corner of former smelting facility; S margin of powerline access road and N end of E dolomite ridge and quarry; between old quarry and slag-dolomite ridge and nautral dolomite area. T36N, R10E, Sec. 34, NE¼, NW¼, NW¼, NE¼.
41.5895 -88.0578
Crushed dolomite; disturbed open area; dolomite prairie; open area with little soil.