Chemical analyses of coal and coal-associated rock samples from the Coalmont Formation, McCallum and Coalmont areas, North Park, Jackson County, Colorado

As part of a continuing program by the U.S. Geological Survey to collect and chemically analyze representative samples of U.S. coals, 44 coal and coal-associated rock samples were collected from the Paleocene and Eocene, Coalmont Formation in the McCallum and Coalmont areas, North Park, Jackson County, Colorado. Twenty-eight samples (24 coal and 4 coal-associated rock) are from the McCallum area and 16 samples (12 coal and 4 coal-associated rock) are from the Coalmont area. Locations of ten core holes and three mines where the samples were collected, and an outline of North Park are shown on figure 1. The 44 samples are briefly described in table 1.