Mines in DeKalb County, Illinois

Mine	Commodity	Type	Status	Source
Ault Quarry	Stone, Crushed/Broken	Surface	Producer	MRDS
Floit Sand & Gravel Co.	Sand and Gravel, Construction	Surface	Producer	MRDS
Mica Pellets Inc. Plant	Perlite	Processing Plant	Producer	MRDS
Mica Pellets Inc. Vermiculite Plant	Vermiculite	Processing Plant	Producer	MRDS
Clinton Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Long Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Purdy Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Sears Limestone Quarry & Plant	Stone, Crushed/Broken	Surface	Plant	MRDS
Sycamore City Pit	Stone	Surface	Past Producer	MRDS
Tyrrell Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Unnamed Limestone Quarry	Stone, Crushed/Broken	Surface	Past Producer	MRDS
Weidner Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
West Lake Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS