TY  - RPRT
TI  - Precambrian to earliest Mississippian stratigraphy, geologic history, and paleogeography of northwestern Colorado and west-central Colorado
AU  - James M. Soule
PY  - 1992
DO  - 10.3133/b1787u
UR  - https://pubs.usgs.gov/publication/b1787U
ID  - b1787U
ER  -