Flagstone Mines in Colorado

25Total Sites
0Active

Flagstone Mining in Colorado

Colorado has 25 flagstone-related mine and mineral deposit locations recorded in federal databases. None are currently listed as active, but historical records document past production and geological occurrences. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.

By County

CountySites
Boulder County25

Flagstone Mines

MineCountyTypeStatus
Brodies Saint VrainBoulderSurfacePast Producer
Carol GoreBoulderSurfacePast Producer
ClemensBoulderSurfacePast Producer
Dam Waters GroupBoulderSurfacePast Producer
Diamond KBoulderSurfacePast Producer
HammonsBoulderSurfacePast Producer
IngersollBoulderUnknown
Jacobson and LyonsBoulderUndergroundPast Producer
JohnsonBoulderSurfacePast Producer
KirtsBoulderSurfacePast Producer
KlineBoulderUndergroundPast Producer
McCall QuarriesBoulderSurfacePast Producer
McConnelBoulderSurfacePast Producer
NolandBoulderSurfacePast Producer
PfieferBoulderSurfacePast Producer
PickettBoulderSurfacePast Producer
RameyBoulderSurfacePast Producer
RawleyBoulderSurfacePast Producer
RedstoneBoulderSurfacePast Producer
Ruski QuarryBoulderSurfacePast Producer
Steamboat ValleyBoulderSurfacePast Producer
SummersBoulderSurfacePast Producer
Tri StateBoulderSurfacePast Producer
United Building StoneBoulderSurfacePast Producer
University of Colorado QuarryBoulderSurfacePast Producer

All flagstone mines nationwide → · All mines in Colorado →