Negative of a photo shows south wall of mesa north side of San Juan River, 5 miles west of Bluff. Geology seen may include Entrada, Summerville, Morrison formations, San Juan County, Utah, 1928. Photograph from Herbert E. Gregory Book 9: Utah, California, 1924-1928
Negative of a photo shows a view of the east side of Butler Wash, about 77 miles above its mouth, in...
Negative of a Photo shows west edge of Black Mesa, east of Butler Wash, San Juan County, Utah, 1927....
Photo shows possibly Morrison formation (Salt Wash member) over shales (Summerville) in Butler Wash,...
Negative of a photo shows south wall of mesa north side of San Juan River, 5 miles west of Bluff. Ge...
Photo shows south wall of mesa north side of San Juan River, 5 miles west of Bluff. Geology seen ma...
Photo shows the wall of a mesa north of San Juan River in San Juan County, Utah, in 1928. Geology se...
Photo shows a view of geology in San Juan County, Utah, with south wall of Dry Wash, entrada sandsto...
Negative of a photo shows lower part of section at Bluff. Geology seen may include Shinarump sandsto...
Photo shows a view looking across San Juan River from a Point 2 miles west of Bluff; probably Entra...
Photo shows view of Red gypsiferous beds. Geology seen may include Summerville formation between En...
Photo shows Bluff sandstone (Entrada) underlain by red beds (Carmel) on the south side of San Juan R...
Photo shows a view looking south across Bluff and San Juan River, corresponding cliffs, Entrada sand...
Negative of a photo shows a view of the east side of Butler Wash, about 77 miles above its mouth, in...
Negative of a Photo shows west edge of Black Mesa, east of Butler Wash, San Juan County, Utah, 1927....
Photo shows possibly Morrison formation (Salt Wash member) over shales (Summerville) in Butler Wash,...
Negative of a photo shows south wall of mesa north side of San Juan River, 5 miles west of Bluff. Ge...
Photo shows south wall of mesa north side of San Juan River, 5 miles west of Bluff. Geology seen ma...
Photo shows the wall of a mesa north of San Juan River in San Juan County, Utah, in 1928. Geology se...
Photo shows a view of geology in San Juan County, Utah, with south wall of Dry Wash, entrada sandsto...
Negative of a photo shows lower part of section at Bluff. Geology seen may include Shinarump sandsto...
Photo shows a view looking across San Juan River from a Point 2 miles west of Bluff; probably Entra...
Photo shows view of Red gypsiferous beds. Geology seen may include Summerville formation between En...
Photo shows Bluff sandstone (Entrada) underlain by red beds (Carmel) on the south side of San Juan R...
Photo shows a view looking south across Bluff and San Juan River, corresponding cliffs, Entrada sand...
Negative of a photo shows a view of the east side of Butler Wash, about 77 miles above its mouth, in...
Negative of a Photo shows west edge of Black Mesa, east of Butler Wash, San Juan County, Utah, 1927....
Photo shows possibly Morrison formation (Salt Wash member) over shales (Summerville) in Butler Wash,...