Letter from Arno B. Cammerer to Carl Hayden regarding the storage of dynamite in Shoski Canyon.

Black and white, silver gelatin print with some silvering. Circa 1930.

Black and white, silver gelatin print with some silvering. Circa 1930.

Black and white, silver gelatin print with some silvering. Circa 1930.

View downstream from Toroweap Point, silver gelatin print.

View from Toroweap Point, silver gelatin print.

Canyon at Toroweap Point, silver gelatin print.

Vulcan's Throne near Toroweap Point, silver gelatin print.

Looking down Toroweap Valley from Mile 57, silver gelatin print.

Black and white print of Fred Wilson at an overlook.