Negative of a photo shows lower part of section at Bluff. Geology seen may include Shinarump sandstone, Moenkopi, Summerville and Morrison formations, San Juan County, Utah, 1928. Photograph from Herbert E. Gregory Book 9: Utah, California, 1924-1928
Photo shows Bluff sandstone (Morrison) 3 miles west of Bluff, San Juan County, Utah, 1932. Photograp...
Photo shows the wall of a mesa north of San Juan River in San Juan County, Utah, in 1928. Geology se...
Photo shows view of Red gypsiferous beds. Geology seen may include Summerville formation between En...
Photo shows lower part of section at Bluff. Geology seen may include Shinarump sandstone, Moenkopi, ...
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 may...
Photo shows a view looking south across Bluff and San Juan River, corresponding cliffs, Entrada sand...
Photo shows Summerville (?) formation at contact with Bluff sandstone (Morrison) Cottonwood Canyon b...
Photo shows a view of geology in San Juan County, Utah, with south wall of Dry Wash, entrada sandsto...
Photo shows Summerville (?) capped by Bluff sandstone (Morrison) near mouth of cottonwood canyon, Sa...
Photo shows possibly Morrison formation (Salt Wash member) over shales (Summerville) in Butler Wash,...
Photo shows Bluff sandstone (Morrison) 3 miles west of Bluff, San Juan County, Utah, 1932. Photograp...
Photo shows the wall of a mesa north of San Juan River in San Juan County, Utah, in 1928. Geology se...
Photo shows view of Red gypsiferous beds. Geology seen may include Summerville formation between En...
Photo shows lower part of section at Bluff. Geology seen may include Shinarump sandstone, Moenkopi, ...
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 may...
Photo shows a view looking south across Bluff and San Juan River, corresponding cliffs, Entrada sand...
Photo shows Summerville (?) formation at contact with Bluff sandstone (Morrison) Cottonwood Canyon b...
Photo shows a view of geology in San Juan County, Utah, with south wall of Dry Wash, entrada sandsto...
Photo shows Summerville (?) capped by Bluff sandstone (Morrison) near mouth of cottonwood canyon, Sa...
Photo shows possibly Morrison formation (Salt Wash member) over shales (Summerville) in Butler Wash,...
Photo shows Bluff sandstone (Morrison) 3 miles west of Bluff, San Juan County, Utah, 1932. Photograp...
Photo shows the wall of a mesa north of San Juan River in San Juan County, Utah, in 1928. Geology se...
Photo shows view of Red gypsiferous beds. Geology seen may include Summerville formation between En...