Photograph showing cliffs with La Plata sandstone at the mouth of Tsegi Canyon on the Navajo Reservation in Arizona in 1910. Photo no. 366 from Herbert E. Gregory Book 4: Navajo, San Juan, 191
Photograph by Edna Gregory of an Ancestral Puebloan cliff dwelling in Canyon de Chelly in 1910. Pho...
Photograph by Stuart M. Young of a view of Tsegy Canyon near Marsh Pass, Arizona, in 1909 Photo no. ...
Photograph of a cliff of La Plata sandstone in Todilto Park area six miles south of Moore's Crystal ...
Photograph showing cliffs with La Plata sandstone at the mouth of Tsegi Canyon on the Navajo Reserva...
Photograph by C.R. Jefferis of Tsegi Canyon displaying La Plata sandstone, on the Navajo Reservation...
Photograph of La Plata (Wingate) sandstone over Dolores siltstone in Piute Canyon, Arizona, in 1913....
Photograph by K. C. Heald of a cliff of Upper La Plata (Morrison) sandstone on the west side of Nava...
Photograph of an Ancestral Puebloan cliff dwelling in Canyon de Chelly in 1910. Photo (unnumbered) ...
Photograph of a branch of Navajo Canyon, Arizona, in 1910. Photo no. 403 from Herbert E. Gregory Bo...
Photograph of La Plata sandstone cliffs in Piute Canyon near Arizona-Utah border in 1913. Photo 651...
Photograph of La Plata sandstone cliffs in Piute Canyon near Arizona-Utah border in 1913. Photo 652...
Photograph of exposed La Plata sandstone at Navajo Springs [location undetermined], Arizona, in 1910...
Photograph by K. C. Heald of two mesas of La Plata and Dolores rock, possibly near Round Rock, Arizo...
Photograph of Dolores cliffs about 8 miles north of Tolchaco, Coconino Co., Arizona, in 1913. Photo...
Photograph shows a butte near Tsegi Canyon on the Navajo Reservation, Navajo County, Arizona, in 191...
Photograph by Edna Gregory of an Ancestral Puebloan cliff dwelling in Canyon de Chelly in 1910. Pho...
Photograph by Stuart M. Young of a view of Tsegy Canyon near Marsh Pass, Arizona, in 1909 Photo no. ...
Photograph of a cliff of La Plata sandstone in Todilto Park area six miles south of Moore's Crystal ...
Photograph showing cliffs with La Plata sandstone at the mouth of Tsegi Canyon on the Navajo Reserva...
Photograph by C.R. Jefferis of Tsegi Canyon displaying La Plata sandstone, on the Navajo Reservation...
Photograph of La Plata (Wingate) sandstone over Dolores siltstone in Piute Canyon, Arizona, in 1913....
Photograph by K. C. Heald of a cliff of Upper La Plata (Morrison) sandstone on the west side of Nava...
Photograph of an Ancestral Puebloan cliff dwelling in Canyon de Chelly in 1910. Photo (unnumbered) ...
Photograph of a branch of Navajo Canyon, Arizona, in 1910. Photo no. 403 from Herbert E. Gregory Bo...
Photograph of La Plata sandstone cliffs in Piute Canyon near Arizona-Utah border in 1913. Photo 651...
Photograph of La Plata sandstone cliffs in Piute Canyon near Arizona-Utah border in 1913. Photo 652...
Photograph of exposed La Plata sandstone at Navajo Springs [location undetermined], Arizona, in 1910...
Photograph by K. C. Heald of two mesas of La Plata and Dolores rock, possibly near Round Rock, Arizo...
Photograph of Dolores cliffs about 8 miles north of Tolchaco, Coconino Co., Arizona, in 1913. Photo...
Photograph shows a butte near Tsegi Canyon on the Navajo Reservation, Navajo County, Arizona, in 191...
Photograph by Edna Gregory of an Ancestral Puebloan cliff dwelling in Canyon de Chelly in 1910. Pho...
Photograph by Stuart M. Young of a view of Tsegy Canyon near Marsh Pass, Arizona, in 1909 Photo no. ...
Photograph of a cliff of La Plata sandstone in Todilto Park area six miles south of Moore's Crystal ...
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