Explorers column, Cañon de Chelle, about 900 ft. in height.

Column walls of sandstone, Cañon de Chelle, about 800 ft. in height.

Apache scouts, at Apache Lake, Sierra Blanca Range.

Distant view of Explorers column, Cañon de Chelle, about 900 ft. in height.

Central portion of Cañon de Chelle, New Mexico.

Camp Beauty, Cañon de Chelle; walls 1,200 feet high, width of Cañon at this point about one fourth of a mile.

Explorers column, Cañon de Chelle, Arizona.

View across Apache Lake, Sierra Blanca Range.

Perched rock, Rocker Creek, Arizona.

Chocolate mesa, Rocker Creek, Arizona.

Vermilion mesa, Rocker Creek, Arizona.

The "Vermillion cliff," a typical plateau edge, as seen from Jacobs Pool, Arizona.