TY  - RPRT
TI  - Geologic map of the northern part of the Piceance Creek basin, northwestern Colorado
AU  - W. J. Hail
AU  - M. C. Smith
PY  - 1994
DO  - 10.3133/i2400
UR  - https://pubs.usgs.gov/publication/i2400
ID  - i2400
ER  -