Bell, William

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

Vermilion mesa, Rocker Creek, Arizona.

Chocolate mesa, Rocker Creek, Arizona.

Perched rock, Rocker Creek, Arizona.

The northern wall of the Grand Cañon of the Colorado, near the foot of To-ro-weap valley.

The northern wall of the Grand Cañon of the Colorado, near the foot of To-ro-weap valley.

Chocolate Butte; mouth of the Paria.

Cross-bedded sandstone, Kanab, Utah.

Mt. Range; Castle Valley in distance.

Cross-bedded sandstone, Kanab, Utah.

Cross-bedded sandstone, Kanab, Utah.

Cross-bedded sandstone, Kanab, Utah.

Weathered limestone, Grass Valley, Utah.