TY - RPRT TI - Principal areas of oil, natural gas, and coal production in the northern part of the Front Range, Colorado AU - Neil S. Fishman AU - Stephen B. Roberts AU - John M. Evans AU - Robert J. Olmstead PY - 2005 DO - 10.3133/i2750b UR - https://pubs.usgs.gov/publication/i2750B ID - i2750B ER -