Central Pacific Railroad Photographic History Museum

---

Home Exhibits Chinese History FAQ's Links

Rights & Permissions; Homework

Museum HOMEPAGE  EXHIBITS Index  —Favorite CPRR Stereographs  —Hart Stereoviews  —New York Public Library  —Muybridge Stereoviews  —Union Pacific Railroad  —Unknowns  —Railroad Maps  —Engravings  —Ephemera and Collectibles  —Nelson's Guidebook, 1871  —Railroads Shipped by Sea  —Locomotive Falcon  Stereograph Catalogs  READ ABOUT  —Lewis M. Clement Biography  —Eastward to Promontory ...  Chinese Railroad Workers  Book List  Online Books  Hopkins RR Library Catalog  Links to other websites  Webrings  Frequently Asked Questions  How you can help / plans  What's New  Technical Notes  Special Requests  User Agreement  Site Map  CPRR.org Welcome  E-mail  Search Internet

---

© 2014 CPRR.org. Use of this Web site constitutes acceptance of the User Agreement which permits personal use web viewing only; no copying; arbitration; no warranty.

---

Geological Map of a part of the State of California Explored in 1853 by Lieut. R. S. Williamson U. S. Top. Engr. Prepared to accompany the report of William P. Blake Geologist of the Expedition.  From Volume V of the Pacific Railroad Surveys, [1855].

(Click on Map to Enlarge)

Geological Map of a part of the State of California Explored in 1853 by Lieut. R. S. Williamson U. S. Top. Engr. Prepared to accompany the report of William P. Blake Geologist of the Expedition.  From Volume V of the Pacific Railroad Surveys, [1855]. Delicate hand-coloring and patterns on this 22" x 16" lithographic map define the various geological regions of the state, primarily in the region from just northeast of San Francisco south to San Diego.

Courtesy Andrea Woolfolk, Elkhorn Slough Foundation.