Photograph of a petrified forest in Beautiful Valley, between Ganado and Chinle, Apache County, Arizona, in 1909. From Herbert E. Gregory Book 1, page 5
Photograph of the petrified forest area near Carrizo [now Lithodendron] Wash, Arizona, in 1913. Pho...
Photograph of the petrified forest area near Carrizo [now Lithodendron] Wash, Arizona, in 1913. Pho...
Photograph of Petrified Forest log near Lithodendron Wash, Arizona, in 1913. Photo 779 from Herbert...
Photograph of a petrified forest in Beautiful Valley, between Ganado and Chinle, Apache County, Ariz...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of a landform (probably Chinle Formation sandstone) at the Petrified Forest near Adamana,...
Photograph of a petrified forest south of Round Rock, Apache Co., Arizona, in 1911. Photo 547 from ...
Photograph of Beautiful Valley, between Ganado and Chinle, Arizona. From Herbert E. Gregory Book 2: ...
Photograph of the petrified forest area near Carrizo [now Lithodendron] Wash, Arizona, in 1913. Pho...
Photograph of the petrified forest area near Carrizo [now Lithodendron] Wash, Arizona, in 1913. Pho...
Photograph of the petrified forest area near Carrizo [now Lithodendron] Wash, Arizona, in 1913. Pho...
Photograph of the petrified forest area near Carrizo [now Lithodendron] Wash, Arizona, in 1913. Pho...
Photograph of Petrified Forest log near Lithodendron Wash, Arizona, in 1913. Photo 779 from Herbert...
Photograph of a petrified forest in Beautiful Valley, between Ganado and Chinle, Apache County, Ariz...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of petrified wood deposits at Beautiful Valley, between Ganado and Chinle, Arizona. From ...
Photograph of a landform (probably Chinle Formation sandstone) at the Petrified Forest near Adamana,...
Photograph of a petrified forest south of Round Rock, Apache Co., Arizona, in 1911. Photo 547 from ...
Photograph of Beautiful Valley, between Ganado and Chinle, Arizona. From Herbert E. Gregory Book 2: ...
Photograph of the petrified forest area near Carrizo [now Lithodendron] Wash, Arizona, in 1913. Pho...
Photograph of the petrified forest area near Carrizo [now Lithodendron] Wash, Arizona, in 1913. Pho...
Photograph of the petrified forest area near Carrizo [now Lithodendron] Wash, Arizona, in 1913. Pho...
Photograph of the petrified forest area near Carrizo [now Lithodendron] Wash, Arizona, in 1913. Pho...
Photograph of Petrified Forest log near Lithodendron Wash, Arizona, in 1913. Photo 779 from Herbert...