TY  - RPRT
TI  - Maps showing locations of holes drilled in 1952 to 1954 by U.S. Geological Survey, Gypsum Valley district, Montrose and San Miguel Counties, Colorado
AU  - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey
PY  - 1969
DO  - 10.3133/ofr69300
UR  - https://pubs.usgs.gov/publication/ofr69300
ID  - ofr69300
ER  -