Title: Photographs Showing Landscapes, Geological and Other Features, of Portions of the Western Territory of the United States, Obtained in connection with Geographical and Geological Explorations and Surveys West of the 100th Meridian, Season of 1871
Object type: Album; Photographs
Date: 1871
Artist:  Timothy H. O'Sullivan 
Artist bio: American, born Ireland, 1840–1882
Artist nationality: American, born Ireland
Artist role: Artist
Medium: Albumen silver prints from glass negatives
Dimensions: Image (each, approximately): 10 7/8 × 7 7/8 in. (27.6 × 20 cm)
Sheet (each, approximately): 10 7/8 × 7 7/8 in. (27.6 × 20 cm)
Printed Border (each): 14 × 11 in. (35.6 × 28 cm)
Mount (each): 19 3/4 × 15 3/4 in. (50.1 × 40 cm)
Overall: 20 1/16 × 17 3/16 × 2 1/4 in. (51 × 43.6 × 5.7 cm)
Classification: Albums
Credit line: Purchase, Joseph Pulitzer Bequest and The Horace W. Goldsmith Foundation Gift through Joyce and Robert Menschel, 1986
Department: Photographs
Repository: Metropolitan Museum of Art, New York, NY