@misc{indiciaea935f39ec5e9,
  title = {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},
  author = {E. R. Hampton},
  year = {1975},
  doi = {10.3133/i856c},
  url = {https://pubs.usgs.gov/publication/i856C},
  note = {Source identifier: i856C}
}