Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. View is northwest toward mouth of Tsegy Canyon. Photo 834 from Herbert E. Gregory Book 7: Navajo, 1913, 1914
Photograph showing cliffs with La Plata sandstone at the mouth of Tsegi Canyon on the Navajo Reserva...
Photograph showing cliffs with La Plata sandstone at the mouth of Tsegi Canyon on the Navajo Reserva...
Photograph of a monocline of La Plata (or Wingate) sandstone over Dolores/Chinle formation on the ea...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. View is no...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. Photo 835 f...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. Photo 837 f...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona,1913. View is northea...
Photograph of Marsh Pass, Arizona, looking east, in 1914. Photo 901 from Herbert E. Gregory Book 7:...
Photograph of Marsh Pass, Arizona, looking west, in 1914. Photo 903 from Herbert E. Gregory Book 7:...
Photograph by K. C. Heald of two mesas of La Plata and Dolores rock, possibly near Round Rock, Arizo...
Photograph of beds of sandstone dipping southeast under Black Mesa, as seen from Marsh Pass, Arizona...
Photograph by Stuart M. Young of a view of Tsegy Canyon near Marsh Pass, Arizona, in 1909 Photo no. ...
Photograph by Stephen Janus of a view of Navajo Canyon, Arizona, toward Navajo Mountain in 1909. La ...
Photograph of Marsh Pass, Arizona, showing recent cutting in alluvial filling by Laguna Creek in 191...
Photograph of the monocline on southeast side of Skeleton Mesa, 2 miles east of the mouth of Tsegy C...
Photograph showing cliffs with La Plata sandstone at the mouth of Tsegi Canyon on the Navajo Reserva...
Photograph showing cliffs with La Plata sandstone at the mouth of Tsegi Canyon on the Navajo Reserva...
Photograph of a monocline of La Plata (or Wingate) sandstone over Dolores/Chinle formation on the ea...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. View is no...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. Photo 835 f...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. Photo 837 f...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona,1913. View is northea...
Photograph of Marsh Pass, Arizona, looking east, in 1914. Photo 901 from Herbert E. Gregory Book 7:...
Photograph of Marsh Pass, Arizona, looking west, in 1914. Photo 903 from Herbert E. Gregory Book 7:...
Photograph by K. C. Heald of two mesas of La Plata and Dolores rock, possibly near Round Rock, Arizo...
Photograph of beds of sandstone dipping southeast under Black Mesa, as seen from Marsh Pass, Arizona...
Photograph by Stuart M. Young of a view of Tsegy Canyon near Marsh Pass, Arizona, in 1909 Photo no. ...
Photograph by Stephen Janus of a view of Navajo Canyon, Arizona, toward Navajo Mountain in 1909. La ...
Photograph of Marsh Pass, Arizona, showing recent cutting in alluvial filling by Laguna Creek in 191...
Photograph of the monocline on southeast side of Skeleton Mesa, 2 miles east of the mouth of Tsegy C...
Photograph showing cliffs with La Plata sandstone at the mouth of Tsegi Canyon on the Navajo Reserva...
Photograph showing cliffs with La Plata sandstone at the mouth of Tsegi Canyon on the Navajo Reserva...
Photograph of a monocline of La Plata (or Wingate) sandstone over Dolores/Chinle formation on the ea...
