United States, Illinois, La Salle Co., S Ottawa; Libby Owens Inc. property; fenced silica quarry at S side of IL 71; peninsula at W end of E water-filled pit; SE of peninsula. T33N, R3E, Sec. 14, SE¼, SW¼, NW¼, NW¼.
41.325 -88.8583
146 meters
480 ft
Disturbed nearly pure white silica sand with some organic material over soft sandstone pavement; dry; remnant dry prairie; slopes ca. 2 m. above lake level.