Browse by date

Title/Description Location Datesort descending
Desert pave, no vegetation United States, Arizona 1921-05-25
Same desert type, pave, no vegetation United States, Arizona 1921-05-25
Veg. at back, Ironwood, Opuntia United States, Arizona 1921-05-26
Ironwood, annuals on pave United States, Arizona 1921-05-26
C.F. Marbut United States, Arizona 1921-05-26
Desert pave, Covillea, Gaertneria United States, Arizona 1921-05-26
Desert pave, Covillea, Gaertneria United States, Arizona 1921-05-26
Desert pave, soil sampling United States, Arizona 1921-05-26
Ironwood, Palo Verde, on desert United States, Arizona 1921-05-26
Giant cactus, ironwood, Covillea United States, Arizona 1921-05-26
View of desert toward mountains United States, Arizona 1921-05-26
Carnegiea, cholla, Isocoma United States, Arizona 1921-05-28
Detail of Carnegiea United States, Arizona 1921-05-28
Original wall of Casa Grande ruins United States, Arizona 1921-05-28
Casa Grande ruin United States, Arizona 1921-05-28
Grinding stone, pottery at ruin United States, Arizona 1921-05-28
Old compartment of ruin United States, Arizona 1921-05-28
Old compound of ruins United States, Arizona 1921-05-28
View near ruins, vegetation United States, Arizona 1921-05-28
Flower of Carnegiea gigantea United States, Arizona 1921-05-29
Detail of Carnegiea United States, Arizona 1921-05-29
Cholla, Carnegiea, Isocoma, Covillea, typical of large areas United States, Arizona 1921-05-29
Grass, Bouteloua hirsuta, general view United States, Arizona 1921-05-31
Grassland with bear grass, Yucca United States, Arizona 1921-05-31
Grassland with bear grass United States, Arizona 1921-05-31
Yucca plants in fruit United States, Arizona 1921-05-31
Yucca elata on weed grass United States, Arizona 1921-05-31
Over grazed desert grassland United States, Arizona 1921-05-31
Alkali flat, no plants at all United States, Arizona 1921-05-31
Alkali flat, no veg., white alkali United States, Arizona 1921-05-31
Grassland with bear grass United States, Arizona 1921-05-31
Grassland with bear grass United States, Arizona 1921-05-31
Yucca, grassland reduced to weed grass stage United States, Arizona 1921-05-31
View of grassland, Boutelouas United States, Arizona 1921-05-31
Grassland, rocky hilltops United States, Arizona 1921-05-31
Grassland, yucca, agave, bear grass United States, Arizona 1921-05-31
Prosopis in flower United States, Arizona 1921-06-01
Yucca elata, Gutierrezia, grass United States, Arizona 1921-06-01
Over grazed grassland with veg. United States, Arizona 1921-06-01
Prosopis, Gutierrezia on Mojave loam United States, Arizona 1921-06-01
Prosopis in bloom United States, Arizona 1921-06-01
Pure Covillea United States, Arizona 1921-06-02
Pure Covillea, 11 mi. south United States, Arizona 1921-06-02
Panorama, alfalfa and grain fields with cottonwood along Valley. Covillea, desert shrub on hill, mountains beyond United States, Arizona 1921-06-02
Panorama, alfalfa and grain fields with cottonwood along Valley. Covillea, desert shrub on hill, mountains beyond United States, Arizona 1921-06-02
Panorama, alfalfa and grain fields with cottonwood along Valley. Covillea, desert shrub on hill, mountains beyond United States, Arizona 1921-06-02
Cat's claw in bloom United States, Arizona 1921-06-03
Apache teepee, soil alkali United States, Arizona 1921-06-03
Teepee, cedar tree at right United States, Arizona 1921-06-03
Poa, Bouteloua gracilis, yellow pine, Aspen, Douglas fir, near divide United States, Arizona 1921-06-04

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