Tallahassee Creek
Surface radioactive anomalies led to uranium discoveries in 1954 at Tallahassee Creek in Fremont County. Mining in the 1950s was by both underground and open-pit methods.
Exploration in the 1970s by Cyprus Mines and Wyoming Minerals defined two orebodies: the Hansen orebody, estimated to contain 12 million pounds of U3O8, and the Picnic Tree orebody, estimated to contain 1 million pounds U3O8. Uranium is present as uraninite, coffinite, and meta-autunite in Eocene and Oligocene arkosic sandstone, congolmerate, and in sediments interbedded with Miocene volcanic flows. uranium is associated with carbonaceous material, and pyrite. The source of uranium is thought to be the Oligocene Wall Mountain Tuff.
In December 2006, the Australian company Black Range Minerals bought rights to mine the Taylor Ranch property, which the company describes as a 30-million pound uranium orebody that had been discovered in the late 1970s, but abandoned because of low uranium prices. The company plans an extensive drilling program in 2008 to delineate the orebody.
Read more about this topic: Uranium Mining In Colorado
Famous quotes containing the word creek:
“It might be seen by what tenure men held the earth. The smallest stream is mediterranean sea, a smaller ocean creek within the land, where men may steer by their farm bounds and cottage lights. For my own part, but for the geographers, I should hardly have known how large a portion of our globe is water, my life has chiefly passed within so deep a cove. Yet I have sometimes ventured as far as to the mouth of my Snug Harbor.”
—Henry David Thoreau (1817–1862)