TY  - RPRT
TI  - Preliminary Geologic Map of the North-Central Part of the Alamosa 30' x 60' Quadrangle, Alamosa, Conejos and Costilla Counties, Colorado
AU  - Michael N. Machette
AU  - Ren A. Thompson
AU  - Theodore R. Brandt
PY  - 2008
DO  - 10.3133/ofr20081124
UR  - https://pubs.usgs.gov/publication/ofr20081124
ID  - ofr20081124
ER  -