Steep bank of San Mateo.Yale South American ExpeditionGrayscaleBowman nitrate negative, box
Looking southeast at fragments int. basin deposits and uncovered floor of basin at foot of mountains...
[Pack train crossing stream.]Yale South American ExpeditionGrayscaleBowman nitrate negative, box
Barley fields on the flat upper slopes of the Urubamba Valley of Peru.Yale South American Expedition...
Poling - San Mateo.Yale South American ExpeditionGrayscaleBowman nitrate negative, box
[Dense vegetation with mountain peaks in distance.]Yale South American ExpeditionGrayscaleBowman nit...
[Vegetation plain with mountains in background.]Yale South American ExpeditionGrayscaleBowman nitrat...
Terrace and outlet channel, 1st to 2nd interior basin.Yale South American ExpeditionGrayscaleBowman ...
Crossing Juntas River just above junction with S. Antonio.Yale South American ExpeditionGrayscaleBow...
[Another view, similar to 286.]Yale South American ExpeditionGrayscaleBowman nitrate negative, box
Camp by river near Jatun Pampa.Yale South American ExpeditionGrayscaleBowman nitrate negative, box
[Stream with steep bank of rock, horizontal layers.]Yale South American ExpeditionGrayscaleBowman ni...
Above Santa Rosa; plains foreground; mountains in background.Yale South American ExpeditionGrayscale...
Lava on sandstone west of Laqueca.Yale South American ExpeditionGrayscaleBowman nitrate negative, bo...
Forested eastern portion of Andes in Bolivia.Yale South American ExpeditionGrayscaleBowman nitrate n...
Glacial striae south of Inca Corral.Yale South American ExpeditionGrayscaleBowman nitrate negative, ...
Looking southeast at fragments int. basin deposits and uncovered floor of basin at foot of mountains...
[Pack train crossing stream.]Yale South American ExpeditionGrayscaleBowman nitrate negative, box
Barley fields on the flat upper slopes of the Urubamba Valley of Peru.Yale South American Expedition...
Poling - San Mateo.Yale South American ExpeditionGrayscaleBowman nitrate negative, box
[Dense vegetation with mountain peaks in distance.]Yale South American ExpeditionGrayscaleBowman nit...
[Vegetation plain with mountains in background.]Yale South American ExpeditionGrayscaleBowman nitrat...
Terrace and outlet channel, 1st to 2nd interior basin.Yale South American ExpeditionGrayscaleBowman ...
Crossing Juntas River just above junction with S. Antonio.Yale South American ExpeditionGrayscaleBow...
[Another view, similar to 286.]Yale South American ExpeditionGrayscaleBowman nitrate negative, box
Camp by river near Jatun Pampa.Yale South American ExpeditionGrayscaleBowman nitrate negative, box
[Stream with steep bank of rock, horizontal layers.]Yale South American ExpeditionGrayscaleBowman ni...
Above Santa Rosa; plains foreground; mountains in background.Yale South American ExpeditionGrayscale...
Lava on sandstone west of Laqueca.Yale South American ExpeditionGrayscaleBowman nitrate negative, bo...
Forested eastern portion of Andes in Bolivia.Yale South American ExpeditionGrayscaleBowman nitrate n...
Glacial striae south of Inca Corral.Yale South American ExpeditionGrayscaleBowman nitrate negative, ...
Looking southeast at fragments int. basin deposits and uncovered floor of basin at foot of mountains...
[Pack train crossing stream.]Yale South American ExpeditionGrayscaleBowman nitrate negative, box
Barley fields on the flat upper slopes of the Urubamba Valley of Peru.Yale South American Expedition...