TY  - RPRT
TI  - Tertiary igneous rocks and Laramide structure and stratigraphy of the Spanish Peaks Region, South-Central Colorado: Road log and descriptions from Walsenburg to La Veta
AU  - Brian S. Penn
AU  - D. A. Lindsay
PY  - 1996
UR  - https://pubs.usgs.gov/publication/70218184
ID  - 70218184
ER  -