TY  - RPRT
TI  - Map of Colorado showing dry holes and oil and gas fields
AU  - F.K. Demok
AU  - H.R. Castor
AU  - N. Wood Bass
PY  - 1947
DO  - 10.3133/om73
UR  - https://pubs.usgs.gov/publication/om73
ID  - om73
ER  -