This is an old clay mine, here on the Denver Front Range, that was active during the early 1950’s and closed in the late 1970’s. The clay that was mined here was a very high quality form of vermiculite that was used to make fire-resistant tile and crucibles. The biggest consumer of this clay was the Coorstek Factory in Golden, Colorado, owned by the famed Coors Brewing Company. The mine is closed but it really cool to look at.














