Photograph of contact between Tertiary and McElmo rock about two miles north of Sunrise Springs, Apache Co., Arizona, in 1913. Photo 701 from Herbert E. Gregory Book 6: Navajo, 1913
Photograph of exposed Permian rock about three miles north of Tucker Spring, near Winslow, Arizona, ...
Photograph of recemented volcanic conglomerate between Sunrise Springs and Indian Wells, Arizona. Fr...
Photograph of a rock outcrop of McElmo sandstone in Blue Canyon, Navajo Co., Arizona, in 1914. Phot...
Photograph of contact between Tertiary and McElmo rock about two miles north of Sunrise Springs, Apa...
Photograph of rock layers showing contact between Navajo and McElmo sandstone strata in Blue Canyon ...
Photograph of contact between McElmo and Dakota rock layers in Todilto Park, New Mexico, in 1913. P...
Photograph of rock layers showing contact between McElmo and Mancos strata, 3 miles northeast of Blu...
Photograph of rock with McElmo-Dakota contact in Moenkopi Valley about 6 miles northeast of the Blue...
Photograph of sandstone layers in the Navajo Mountain country, southern Utah, 1913. Photo 657 from ...
Photograph shows exposed McElmo strata neart the northeast point of Black Mesa, south of Kayenta, Ar...
Photograph shows contact between Carboniferous and Permian rock near Wolf Crossing, Coconino Co., Ar...
Photograph of McElmo strata on top of the Sentinal formation, between Sentinel Rock and Warm creeks ...
Photograph of the contact between Navajo Sandstone and the Sentinel formation on the east branch of ...
Photograph of exposed Permian, Shinarump, and Dolores rock near Tucker Spring near Winslow, Arizona,...
Photograph of the south base of Navajo Church, a rock formation about 8 miles east of Gallup, New Me...
Photograph of exposed Permian rock about three miles north of Tucker Spring, near Winslow, Arizona, ...
Photograph of recemented volcanic conglomerate between Sunrise Springs and Indian Wells, Arizona. Fr...
Photograph of a rock outcrop of McElmo sandstone in Blue Canyon, Navajo Co., Arizona, in 1914. Phot...
Photograph of contact between Tertiary and McElmo rock about two miles north of Sunrise Springs, Apa...
Photograph of rock layers showing contact between Navajo and McElmo sandstone strata in Blue Canyon ...
Photograph of contact between McElmo and Dakota rock layers in Todilto Park, New Mexico, in 1913. P...
Photograph of rock layers showing contact between McElmo and Mancos strata, 3 miles northeast of Blu...
Photograph of rock with McElmo-Dakota contact in Moenkopi Valley about 6 miles northeast of the Blue...
Photograph of sandstone layers in the Navajo Mountain country, southern Utah, 1913. Photo 657 from ...
Photograph shows exposed McElmo strata neart the northeast point of Black Mesa, south of Kayenta, Ar...
Photograph shows contact between Carboniferous and Permian rock near Wolf Crossing, Coconino Co., Ar...
Photograph of McElmo strata on top of the Sentinal formation, between Sentinel Rock and Warm creeks ...
Photograph of the contact between Navajo Sandstone and the Sentinel formation on the east branch of ...
Photograph of exposed Permian, Shinarump, and Dolores rock near Tucker Spring near Winslow, Arizona,...
Photograph of the south base of Navajo Church, a rock formation about 8 miles east of Gallup, New Me...
Photograph of exposed Permian rock about three miles north of Tucker Spring, near Winslow, Arizona, ...
Photograph of recemented volcanic conglomerate between Sunrise Springs and Indian Wells, Arizona. Fr...
Photograph of a rock outcrop of McElmo sandstone in Blue Canyon, Navajo Co., Arizona, in 1914. Phot...