Serene, Colorado is an extinct coal mining company town that was owned by the Rocky Mountain Fuel Company.[1] Serene was located at the site of the Columbine Mine and had company housing and a coal preparation plant. The Serene post office operated from January 25, 1923, until August 31, 1942.[2] Serene was the site of the Columbine Mine Massacre on November 21, 1927.
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