Saguaro |
Mexico, Sonora |
1932-03-03 |
Roots of mesquite, Franseria, desert veg. |
Mexico, Sonora |
1932-03-07 |
Root system of Cereus thurberi |
Mexico, Sonora |
1932-03-06 |
Rocks and sea |
Mexico, Sonora |
1932-05-06 |
Road and veg. |
United States, Arizona, Hannigan's Meadow:Coronado Trail |
1932-06-05 |
Rancheros |
Mexico, Sonora, Poso Serma Rancho |
1932-05-05 |
Presidents Residence |
United States, Arizona, University of Arizona |
1932-07-07 |
Populus tremuloides forest |
United States, Utah, Cedar Breaks |
1932-08-15 |
Populus tremuloides forest |
United States, Utah, Cedar Breaks |
1932-08-15 |
Populus tremuloides |
United States, Utah, Cedar Breaks |
1932-08-15 |
Populus tremuloides |
United States, Utah, Cedar Breaks |
1932-08-15 |
Plaza |
Mexico, Sonora |
1932-03-07 |
Plank road |
United States, Arizona |
1932-07-30 |
People |
Mexico, Sonora, Poso Serma Rancho |
1932-05-05 |
Panorama of Roosevelt Dam |
United States, Arizona, Roosevelt Dam |
1932-06-04 |
Panorama of Roosevelt Dam |
United States, Arizona, Roosevelt Dam |
1932-06-04 |
Panorama of Roosevelt Dam |
United States, Arizona, Roosevelt Dam |
1932-06-04 |
Panorama of desert veg. |
Mexico, Sonora |
1932-05-08 |
Panorama of desert veg. |
Mexico, Sonora |
1932-05-08 |
Panorama of desert veg. |
Mexico, Sonora |
1932-05-08 |
Palo Verde, view of Mt. |
United States, Arizona, Picacho Peak |
1932-03-23 |
Pack rat nest |
Mexico, Sonora |
1932-03-04 |
Pachycereus pringlei |
Mexico, Sonora |
1932-05-06 |
Pachycereus pringlei |
Mexico, Sonora |
1932-05-06 |
Pachycereus pringlei |
Mexico, Sonora |
1932-05-06 |
Pachycereus pringlei |
Mexico, Sonora |
1932-05-06 |
Owl |
Mexico, Sonora |
1932-05-04 |
Owl |
Mexico, Sonora |
1932-05-04 |
Owl |
Mexico, Sonora |
1932-05-04 |
Owl |
Mexico, Sonora |
1932-05-04 |
Overturned rock |
Mexico, Sonora |
1932-05-06 |
Overturned rock |
Mexico, Sonora |
1932-05-06 |
Opuntia vivipara |
United States, Arizona |
1932-08-23 |
Opuntia vivipara |
United States, Arizona |
1932-08-23 |
Opuntia vivipara |
United States, Arizona |
1932-08-23 |
Opuntia vivipara |
United States, Arizona |
1932-08-23 |
Opuntia versicolor |
United States, Arizona |
1932-08-23 |
Opuntia versicolor |
United States, Arizona |
1932-08-26 |
Opuntia versicolor |
United States, Arizona |
1932-08-23 |
Opuntia versicolor |
United States, Arizona |
1932-08-27 |
Opuntia spinosior |
United States, Arizona |
1932-08-27 |
Opuntia spinosior |
United States, Arizona |
1932-08-27 |
Opuntia spinosior |
United States, Arizona |
1932-08-27 |
Opuntia spinosior |
United States, Arizona |
1932-08-23 |
Opuntia spinosior |
United States, Arizona |
1932-08-23 |
Opuntia Santa Rita, flower |
Mexico, Sonora |
1932-05-05 |
Opuntia Santa Rita |
United States, Arizona |
1932-08-24 |
Opuntia Santa Rita |
Mexico, Sonora |
1932-05-05 |
Opuntia Santa Rita |
Mexico, Sonora |
1932-05-05 |
Opuntia Santa Rita |
Mexico, Sonora |
1932-05-05 |