map from "Geology and industrial resources of California ... To which is added the official reports of Genls. Persifer, F. Smith, and B. Riley, including the reports of Lieuts. Talbot, Ord, Derby, and Williamson, of their explorations in California and Oregon; and also of their examinations of routes for railroad communication eastward from those countries"

This image has been taken from scan 000125 from "Geology and industrial resources of California ... To which is added the official reports of Genls. Persifer, F. Smith, and B. Riley, including the reports of Lieuts. Talbot, Ord, Derby, and Williamson, of their explorations in California and Oregon; and also of their examinations of routes for railroad communication eastward from those countries". The title and subject terms of this image have been generated from tags, created by users of the British Library's flickr photostream.