TY  - RPRT
TI  - Preliminary report concerning explorations and surveys principally in Nevada and Arizona: Prosecuted in accordance with paragraph 2, special orders No. 109, War Department, March 18, 1871, from Brigadier General A.A. Humphreys, Chief of Engineers
AU  - George Montague Wheeler
PY  - 1872
DO  - 10.3133/70039936
UR  - https://pubs.usgs.gov/publication/70039936
ID  - 70039936
ER  -