TY - RPRT TI - Map showing availability of hydrologic data published by the U.S. Environmental Data Service and by the U.S. Geological Survey and cooperating agencies, greater Denver area, Front Range Urban Corridor, Colorado AU - E. R. Hampton PY - 1975 DO - 10.3133/i856c UR - https://pubs.usgs.gov/publication/i856C ID - i856C ER -