Collection of 23 albumen print stereoviews on publisher cardstock mounts featuring iconic landscape, rail infrastructure, and geological views along the Union Pacific Railroad route, ca. 1869-late 1870s. Published by leading frontier photographers including William Henry Jackson, Charles Weitfle, Carleton E. Watkins, Charles Bierstadt, J.B. Silvis, C.L. Pond, and Thomas B. Cardon. 

A remarkable and comprehensive collection capturing the defining topographical wonders and construction milestones of the Union Pacific Railroad's western approach to Promontory Summit. Featured subjects include Devil's Slide and Weber Canyon, the 1,000-Mile Tree, Witch Rocks and Hanging Rock, Tee-Pot Rock and Green River Formations, Ogden Canyon and Logan Camp and Locomotives.

Together, these views provide an essential visual archive of the Union Pacific corridor at the dawn of transcontinental travel, preserving the celebrated geological monuments and lonely outposts that defined the journey through the Wasatch and Rocky Mountains. 

This lot includes: 

1. and 2. No. 416. "The Devil's Slide," Weber Canon. Central City, Colorado: Chas. Weitfle. Imprint to mount verso. Title in negative. 

3. 1267. Witch Rocks in Echo Canon, U.P.R.R. Niagara Falls, New York: C. Bierstadt. Imprint to mount recto. 

4. 431 Profile Rock, near Echo, U.P.R.R. Central City, Colorado: Chas. Weitfle. Imprint to mount verso. Title in negative. 

5. No. 420 The 1,000-Mile Tree, Weber Canon. Central City, Colorado: Chas. Weitfle. Imprint to mount verso. Title in negative. 

6. 4503. Devil's Slide, Weber Canon. Denver: W.H. Jackson. Imprint to mount recto. Title in negative. 

7. 455 Hanging Rock, near Echo, U.P.R.R. Central City, Colorado: Chas. Weitfle. Imprint to mount verso. Title in negative. 

8. View of tents. Logan, Utah: Thos. B. Cardon & Bro's. Imprint to mount recto. 

9. No. 149. Needle Rocks, near Wahsatch. [Omaha]: W.H. Jackson. Imprint to mount recto. 

10. No. 89. West from Tunnel No. 4, Weber Canon. Omaha: W.H. Jackson. Imprint to mount recto. 

11. No. 150. Needle Rocks, near Wahsatch. [Omaha]: W.H. Jackson. Imprint to mount recto. 

12. Needle Rock. N.p.: J.B. Silvis. Imprint to mount recto and verso. Period pencil inscription identifying location to mount verso. 

13. No. 168. Tea-Pot Rock, Green River. [Omaha]: W.H. Jackson. Imprint to mount recto. 

14. 1269. Pulpit Rock in Echo Canon, U.P.R.R. Niagara Falls, New York: C. Bierstadt. Imprint to mount recto. 

15. 1260. Ogden Canon, Utah. Niagara Falls, New York: C. Bierstadt. Imprint to mount recto. 

16. 1266. Witch Rocks in Echo Canon, U.P.R.R. Niagara Falls, New York: C. Bierstadt. Imprint to mount recto. 

17. 745—View in the Wahsatch Mountains, Utah. Buffalo, New York: C.L. Pond. Imprint to mount recto. 

18. No. 213 Witches' Rocks Weber Canyon, U.P.R.R. Marysville, California: J.J. Reilly. Imprint to mount recto. 

19. 2763. Witch Rocks, near Echo, Utah. U.P.R.R. San Francisco: Carleton Watkins. Imprint to mount recto. 

20. View of a hillside. N.p.: J.B. Silvis. Imprint to mount recto and verso. 

21. Look at a rocky landscape. Omaha: Jackson Bros. Imprint to mount verso. 

22. 648—Witch Rocks, U.P.R.R. Utah Ter. Buffalo, New York: C.L. Ponds. Imprint to mount recto. 

23. No. 74 Devil's Gate—Weber Canon. Omaha: W.H. Jackson. Imprint to mount recto. 

[Union Pacific Railroad, UPRR, Transcontinental Railroad, Weber Canyon, Echo Canyon, Devil's Slide, 1000 Mile Tree, Witch Rocks, Green River Wyoming, Ogden Utah, Logan Utah, William Henry Jackson, Jackson Bros, Charles Weitfle, Carleton Watkins, Charles Bierstadt, Stereoviews, Western Expansion, 1870s Photography]

Very good overall condition. Prints display rich tones, crisp focal clarity, and balanced highlights. Card mounts remain solid and flat with expected light handling wear, faint foxing, and minor corner rubbing.