Timothy O'Sullivan (possibly) / William Bell (possibly)
1871-1875 (ca)
Rock carved by the Colorado

Collotype
Rijksmuseum
RP-F-2001-7-794-6
 
George M. Wheeler et al., 1875, Report upon Geographical and Geological explorations and surveys west of the One Hundreth Meridian, vol. III - Geology, (Washington [D.C.]: Government Printing Office)
 
LL/79114