Cliffs with overthrust.Expedition to Central AndesGrayscaleBowman nitrate negative, box
Cattle crosing at 13,800 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, box
Goats on steep slope.Expedition to Central AndesGrayscaleBowman nitrate negative, box
Looking west, from 15,150 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, box
Cliffs capped with gravel 500-600' high at 9,300 [feet]. Above Angosto.Expedition to Central AndesGr...
Cliffs of ? Congl. Volc. 13,270 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, ...
S.S. fill - indurated in canyon floor of older rock.Expedition to Central AndesGrayscaleBowman nitra...
Rio de la Poma (?) at Angosto.Expedition to Central AndesGrayscaleBowman nitrate negative, box
Looking W x S up Escoipe ravine toward flat-topped spurs.Expedition to Central AndesGrayscaleBowman ...
From quebrada near Catua. 13,050'.Expedition to Central AndesGrayscaleBowman nitrate negative, box
Mt. slopes at 1,000 [feet]. Not yet dissected.Expedition to Central AndesGrayscaleBowman nitrate neg...
Lava dam, baked s.s.s rubble under lava, normal s.s., columnar structure and river.Expedition to Cen...
Smooth slopes, 16,400 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, box
Looking n.w. from 15,150 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, box
Looking west and east from main cordillera.Expedition to Central AndesGrayscaleBowman nitrate negati...
Frozen seepage.Expedition to Central AndesGrayscaleBowman nitrate negative, box
Cattle crosing at 13,800 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, box
Goats on steep slope.Expedition to Central AndesGrayscaleBowman nitrate negative, box
Looking west, from 15,150 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, box
Cliffs capped with gravel 500-600' high at 9,300 [feet]. Above Angosto.Expedition to Central AndesGr...
Cliffs of ? Congl. Volc. 13,270 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, ...
S.S. fill - indurated in canyon floor of older rock.Expedition to Central AndesGrayscaleBowman nitra...
Rio de la Poma (?) at Angosto.Expedition to Central AndesGrayscaleBowman nitrate negative, box
Looking W x S up Escoipe ravine toward flat-topped spurs.Expedition to Central AndesGrayscaleBowman ...
From quebrada near Catua. 13,050'.Expedition to Central AndesGrayscaleBowman nitrate negative, box
Mt. slopes at 1,000 [feet]. Not yet dissected.Expedition to Central AndesGrayscaleBowman nitrate neg...
Lava dam, baked s.s.s rubble under lava, normal s.s., columnar structure and river.Expedition to Cen...
Smooth slopes, 16,400 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, box
Looking n.w. from 15,150 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, box
Looking west and east from main cordillera.Expedition to Central AndesGrayscaleBowman nitrate negati...
Frozen seepage.Expedition to Central AndesGrayscaleBowman nitrate negative, box
Cattle crosing at 13,800 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, box
Goats on steep slope.Expedition to Central AndesGrayscaleBowman nitrate negative, box
Looking west, from 15,150 [feet].Expedition to Central AndesGrayscaleBowman nitrate negative, box