6 1/8 x 4 3/8 in. stereoviews on cardstock mounts (overall very good condition, rich tonality, some with light soiling; corner and edge wear to mounts, some with surface residue). Rectos feature "US Topographical and Geological Survey of the Colorado River of the West, By J.W. Powell and A.H. Thompson" imprint. Most versos with applied paper labels including the photographer's credit, image number, and title. Some labels also include the "Department of the Interior, US Geographical and Geological Survey of the Territories" imprint and 1875 date. Several versos also include applied paper label from publisher J.F. Jarvis, Washington, DC.

Highlights include:

Views on Kanab Creek, No. 6, Upper Pa-Ro-Gunt. -- Views on the Rio Virgen, No. 20, Lower Cascades, No. 23, Pa-Roo-Noo-Woo-Peap (2), No. 24, Alcove Wall, No. 27, Head of the Narrows, No 32, Too-Wa-Shoop. -- Views on the Sevier River, No. 39, Singing Falls, No. 45, Renshaw's Cascade, Bullion Canon. -- Views on Kanab Creek, No. 57, Marble Pinnacle, No. 70, View Down the Canon, No. 80, Ragged Walls. -- Indians of the Colorado Valley, No. 88, Ancient Ruins on the Cliffs of Glen Canon, seen from the foot of the Cliff. -- Views on the Green River, No. 94, Portage at Log Cabin Cliff, No. 240, Low Water

Views on Brush Creek, No. 121, Looking down the Canon, No. 122, Alcove Wall. -- Views on the Colorado River, No. 136, Side Canon, No. 162, One of the Glens, No. 178, Boulders, No. 216, Across the Canon, No. 219, Mu-Av Canon, No. 220, The Canon, seen from To-ro-weap Valley, No. 225, The Poised Rock, No. 226, Moo-Av Canon, from Side Gulch. -- Views on Boulder Creek, No. 142, On Boulder Creek, No. 146, Boulders. -- Views on the Water Pocket Creek, No. 184, View on Water Pocket Canon. -- Views on Tantalus Creek, No. 206, The Heart of the Canon, No. 297, The Camp's Lullaby. -- 9 additional stereoviews.