Photo shows Navajo and Wingate sandstone on Chinle, 2 miles northeast Pipe Springs, Mohave County, Arizona, 1936. Photograph from Herbert E. Gregory Book 10: San Juan, Zion, Capitol Reef, 1915-193
Photo shows Chinle marls at Sand Wash, Mohave County, Arizona, 1936. Photograph from Herbert E. Greg...
Photo shows Wingate sandstone at the head of the upper south branch of Kitchen Canyon, east of White...
Photo shows Cross bedded Wingate sandstone in Johnson Canyon, Kane County, Utah, 1932. Photograph fr...
Photo shows Navajo and Wingate sandstone on Chinle, 2 miles northeast Pipe Springs, Mohave County, A...
Photo shows a Navajo sandstone ridge near Pipe Springs, Mohave County, Arizona, 1936. Photograph fro...
Photo shows banded Navajo sandstone near the place where Wingate and Kayenta first lose their identi...
Photo shows detail of contact at Navajo sandstone ridge near Pipe Springs, Mohave County, Arizona, 1...
Negative for photograph from Herbert E. Gregory Book 10: San Juan, Zion, Capitol Reef, 1915-1938. I...
Photo shows Navajo sandstone 200 feet above Chinle Rosencrans Wash in Mohave County, Arizona, 1936. ...
Photo shows color banded Navajo-Wingate sandstone at Sand Wash, Mohave County, Arizona, 1936. Photog...
Photo shows Navajo sandstone along a branch of Parashant Wash north of Cane Beds, Arizona. Kane Coun...
Photo shows Chinle, including Springdale marls, Wingate Kayenta Navajo. Lambs Point, Kane County, Ut...
Photo shows Wingate sandstone on an unusual form of Chinle, on a branch of Johnson Canyon. Kane Coun...
Photo shows Chinle marls at Sand Wash, Mohave County, Arizona, 1936. Photograph from Herbert E. Greg...
Photo shows Wingate sandstone at the head of the upper south branch of Kitchen Canyon, east of White...
Photo shows Cross bedded Wingate sandstone in Johnson Canyon, Kane County, Utah, 1932. Photograph fr...
Photo shows Navajo and Wingate sandstone on Chinle, 2 miles northeast Pipe Springs, Mohave County, A...
Photo shows a Navajo sandstone ridge near Pipe Springs, Mohave County, Arizona, 1936. Photograph fro...
Photo shows banded Navajo sandstone near the place where Wingate and Kayenta first lose their identi...
Photo shows detail of contact at Navajo sandstone ridge near Pipe Springs, Mohave County, Arizona, 1...
Negative for photograph from Herbert E. Gregory Book 10: San Juan, Zion, Capitol Reef, 1915-1938. I...
Photo shows Navajo sandstone 200 feet above Chinle Rosencrans Wash in Mohave County, Arizona, 1936. ...
Photo shows color banded Navajo-Wingate sandstone at Sand Wash, Mohave County, Arizona, 1936. Photog...
Photo shows Navajo sandstone along a branch of Parashant Wash north of Cane Beds, Arizona. Kane Coun...
Photo shows Chinle, including Springdale marls, Wingate Kayenta Navajo. Lambs Point, Kane County, Ut...
Photo shows Wingate sandstone on an unusual form of Chinle, on a branch of Johnson Canyon. Kane Coun...
Photo shows Chinle marls at Sand Wash, Mohave County, Arizona, 1936. Photograph from Herbert E. Greg...
Photo shows Wingate sandstone at the head of the upper south branch of Kitchen Canyon, east of White...
Photo shows Cross bedded Wingate sandstone in Johnson Canyon, Kane County, Utah, 1932. Photograph fr...