Photograph of a canyon near Tudecoz Spring with its Upper Permian sandstone walls, about six miles south of Cross Canyon in Apache County, Arizona, 1913. Photo 585 from Herbert E. Gregory Book 6: Navajo, 1913
Photograph by W. B. Emery of a canyon displaying Wingate sandstone over Chinle shale, in the Carrizo...
Photograph of exposed Upper Permian rock in the desert near Holbrook, Arizona, in 1913. Photo 712 f...
Photo shows sandstone (probably Navajo) and overlying beds in canyon about 12 miles east of Utah Col...
Photograph of a canyon near Tudecoz Spring with its Upper Permian sandstone walls, about six miles s...
Photograph of a canyon near Tudecoz Spring with its Upper Permian sandstone walls, about six miles s...
Photograph of a canyon near Tudecoz Spring with its Upper Permian sandstone walls, about six miles s...
Photograph of a canyon near Tudecoz Spring with its Upper Permian sandstone walls, about six miles s...
Photograph of wind-carved Permian rock two miles above Tolchaco, Arizona, in 1913. Photo 729 from H...
Photograph shows cross-bedding in La Plata sandstone near Totocong Spring in the Chinle Valley north...
Photograph of Upper Permian rock exposed in Bonito Creek Canyon [now Blue Canyon] near Fort Defian...
Photograph shows cross-bedding in La Plata sandstone near Totocong Spring in the Chinle Valley north...
Photograph shows cross-bedding in La Plata sandstone near Totocong Spring in the Chinle Valley north...
Photograph of Upper Permian rock exposed in Bonito Creek Canyon [now Blue Canyon] near Fort Defian...
Photograph shows cross-bedding in La Plata sandstone near Totocong Spring in the Chinle Valley north...
Photograph of Navajo Sandstone cliffs in Warm Creek Canyon over a mile above confluence with Colorad...
Photograph by W. B. Emery of a canyon displaying Wingate sandstone over Chinle shale, in the Carrizo...
Photograph of exposed Upper Permian rock in the desert near Holbrook, Arizona, in 1913. Photo 712 f...
Photo shows sandstone (probably Navajo) and overlying beds in canyon about 12 miles east of Utah Col...
Photograph of a canyon near Tudecoz Spring with its Upper Permian sandstone walls, about six miles s...
Photograph of a canyon near Tudecoz Spring with its Upper Permian sandstone walls, about six miles s...
Photograph of a canyon near Tudecoz Spring with its Upper Permian sandstone walls, about six miles s...
Photograph of a canyon near Tudecoz Spring with its Upper Permian sandstone walls, about six miles s...
Photograph of wind-carved Permian rock two miles above Tolchaco, Arizona, in 1913. Photo 729 from H...
Photograph shows cross-bedding in La Plata sandstone near Totocong Spring in the Chinle Valley north...
Photograph of Upper Permian rock exposed in Bonito Creek Canyon [now Blue Canyon] near Fort Defian...
Photograph shows cross-bedding in La Plata sandstone near Totocong Spring in the Chinle Valley north...
Photograph shows cross-bedding in La Plata sandstone near Totocong Spring in the Chinle Valley north...
Photograph of Upper Permian rock exposed in Bonito Creek Canyon [now Blue Canyon] near Fort Defian...
Photograph shows cross-bedding in La Plata sandstone near Totocong Spring in the Chinle Valley north...
Photograph of Navajo Sandstone cliffs in Warm Creek Canyon over a mile above confluence with Colorad...
Photograph by W. B. Emery of a canyon displaying Wingate sandstone over Chinle shale, in the Carrizo...
Photograph of exposed Upper Permian rock in the desert near Holbrook, Arizona, in 1913. Photo 712 f...
Photo shows sandstone (probably Navajo) and overlying beds in canyon about 12 miles east of Utah Col...