TY  - RPRT
TI  - Report of the survey of the Colorado of the West: Letter from the Secretary of the Smithsonian Institution, transmitting a report of the survey of the Colorado of the West and its tributaries
AU  - John Wesley Powell
PY  - 1873
DO  - 10.3133/70039909
UR  - https://pubs.usgs.gov/publication/70039909
ID  - 70039909
ER  -