TY  - RPRT
TI  - Anthracite-Crested Butte folio, Colorado
AU  - Samuel Franklin Emmons
AU  - Whitman Cross
AU  - George H. Eldridge
PY  - 1894
DO  - 10.3133/gf9
UR  - https://pubs.usgs.gov/publication/gf9
ID  - gf9
ER  -