Mines in Union County, Iowa

Mine	Commodity	Type	Status	Source
Thayer Pit	Sand and Gravel, Construction	Surface	Producer	MRDS
Thayer Quarry	Stone, Crushed/Broken	Surface	Producer	MRDS
Afton Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Afton-lacena Pit	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Bullock Quarry	Stone, Crushed/Broken	Surface	Past Producer	MRDS
Spring Valley Lake	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Unknown	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Unknown	Sand and Gravel, Construction	Surface	Past Producer	MRDS
Unknown	Stone, Crushed/Broken	Surface	Past Producer	MRDS
Unknown	Stone, Crushed/Broken	Surface	Past Producer	MRDS