Add to ORKGPhotograph of the "flat irons" on the east face of Skeleton Mesa, north of Marsh Pass in Arizona in 1913. Photo 646 from Herbert E. Gregory Book 6: Navajo, 1913
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 of men and horses with Herbert Gregory party next to Shinarump outcrops about 2 miles bel...
Photograph of the "flat irons" on the east face of Skeleton Mesa, north of Marsh Pass in Arizona in ...
Photograph of the "flat irons" on the east face of Skeleton Mesa, north of Marsh Pass in Arizona in ...
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 La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. Photo 837 f...
Photograph of horses with Herbert Gregory party grazing at Marsh Pass, Arizona, 1913. Photo 675 fro...
Photograph of the monocline on southeast side of Skeleton Mesa, 2 miles east of the mouth of Tsegy C...
Photograph of the monocline on southeast side of Skeleton Mesa, 2 miles east of the mouth of Tsegy C...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. Photo 835 f...
Photograph of a monocline of La Plata (or Wingate) sandstone over Dolores (Chinle) formation on the ...
Photograph of beds of sandstone dipping southeast under Black Mesa, as seen from Marsh Pass, Arizona...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona,1913. View is northea...
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 of men and horses with Herbert Gregory party next to Shinarump outcrops about 2 miles bel...
Photograph of the "flat irons" on the east face of Skeleton Mesa, north of Marsh Pass in Arizona in ...
Photograph of the "flat irons" on the east face of Skeleton Mesa, north of Marsh Pass in Arizona in ...
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 La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. Photo 837 f...
Photograph of horses with Herbert Gregory party grazing at Marsh Pass, Arizona, 1913. Photo 675 fro...
Photograph of the monocline on southeast side of Skeleton Mesa, 2 miles east of the mouth of Tsegy C...
Photograph of the monocline on southeast side of Skeleton Mesa, 2 miles east of the mouth of Tsegy C...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona, in 1913. Photo 835 f...
Photograph of a monocline of La Plata (or Wingate) sandstone over Dolores (Chinle) formation on the ...
Photograph of beds of sandstone dipping southeast under Black Mesa, as seen from Marsh Pass, Arizona...
Photograph by K. C. Heald of La Plata sandstone exposed at Marsh Pass, Arizona,1913. View is northea...
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 of men and horses with Herbert Gregory party next to Shinarump outcrops about 2 miles bel...