TY  - RPRT
TI  - Map showing availability of hydrologic data published as of 1974 by the U.S. Environmental Data Service and by the U.S. Geological Survey and cooperating agencies, Colorado Springs— Castle Rock area, Front Range Urban Corridor, Colorado
AU  - L. O. Anna
PY  - 1975
DO  - 10.3133/i857d
UR  - https://pubs.usgs.gov/publication/i857D
ID  - i857D
ER  -