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Methane in Cretaceous and Paleocene coals of western Colorado

Western Colorado is the site of coal, oil, and natural gas development in three principal areas: the San Juan River, the Unita, and the Green River regions. Evidence is accumulating that some of the coals in these regions both act as a source and potential reservoir for natural gas (methane). This paper details some of the evidence and describes work being done by the Colorado Geological Survey to estimate methane resources of these regions. (JMT)