The Calcite Mine is a minor tungsten mine in the Cherry Creek Range. The tungsten ore was in the form of both wolframite and scheelite.

The Calcite Mine has some of the funkiest buildings I've ever seen. The main building is fairly conventional. At the mine shaft there is a stone retaining wall partway around the shaft, and an odd little blacksmith shop right at the edge of the shaft. Part of the blacksmith shop is built from stone. Part of it is made from railroad ties, and the rest is made from logs and rough-hewn timbers, covered with corrugated metal on the exterior.

To the right of the blacksmith's shop is another, slightly larger building. This building is made partially from stone and partially with a mix of new and recycled lumber, plus some rough timbers. Parts of the exterior are sheathed with corrugated metal. I don't know what purpose this building served, but inside at the back of the building is an adit -- the entrance of a mine tunnel going back into the mountain. Some sections of this building have caved in, and the whole thing seemed a bit unstable, so I didn't get very far into the structure and couldn't see how far back the mine went.

Both the mine shaft and adit have not be used for a long time. The shaft collar is collapsing and the end wall of the blacksmith's shop hangs precariously over the shaft.

There is another adit farther up the canyon, with an ore chute on the edge of the mine dump. This is most likely the mine that was most recently worked.

I visited the Calcite Mine in July 2024.