OF-76-01 Active/Licensed Coal Mines of Colorado


SKU: OF-76-01D Categories: , Tags: , , , , , , , ,

This first (March 1976) publication by the CGS of active/licensed coal fields in Colorado shows the outline of coal-bearing regions with mine entrances and surface/strip mine pit locations. Also provided are the coal region name with original in-place resources to 6,000 feet depth. Listed are the mine name, coal-bearing bed formation, thickness, rank, number of employees as of December 1975, the average daily production in 1975, and the total 1975 production. 1 plate (1:500,000?). Digital PDF download. OF-76-01D