This copy is copyright protected.
Copyright © 2025 Geographicus Rare Antique Maps
Digital Image: 1866 Hoffmann Map of the Sutro Tunnel and the Comstock Lode, Nevada
SutroTunnelComstockLode-hoffmann-1866_d
Title
Topographical Map Showing the Locations of the Sutro Tunnel and the Comstock Lode State of Nevada, United States of America.
1866 (dated) 13.25 x 13.25 in (33.655 x 33.655 cm) 1 : 31680
1866 (dated) 13.25 x 13.25 in (33.655 x 33.655 cm) 1 : 31680
Description
FOR THE ORIGINAL ANTIQUE MAP, WITH HISTORICAL ANALYSIS, CLICK HERE.
Digital Map Information
Geographicus maintains an archive of high-resolution rare map scans. We scan our maps at 300 DPI or higher, with newer images being 600 DPI, (either TIFF or JPEG, depending on when the scan was done) which is most cases in suitable for enlargement and printing.
Delivery
Once you purchase our digital scan service, you will receive a download link via email - usually within seconds. Digital orders are delivered as ZIP files, an industry standard file compression protocol that any computer should be able to unpack. Some of our files are very large, and can take some time to download. Most files are saved into your computer's 'Downloads' folder. All delivery is electronic. No physical product is shipped.
Credit and Scope of Use
You can use your digial image any way you want! Our digital images are unrestricted by copyright and can be used, modified, and published freely. The textual description that accompanies the original antique map is not included in the sale of digital images and remains protected by copyright. That said, we put significant care and effort into scanning and editing these maps, and we’d appreciate a credit when possible. Should you wish to credit us, please use the following credit line:
Courtesy of Geographicus Rare Antique Maps (http://www.geographicus.com).
How Large Can I Print?
In general, at 300 DPI, you should at least be able to double the size of the actual image, more so with our 600 DPI images. So, if the original was 10 x 12 inches, you can print at 20 x 24 inches, without quality loss. If your display requirements can accommodate some loss in image quality, you can make it even larger. That being said, no quality of scan will allow you to blow up at 10 x 12 inch map to wall size without significant quality loss. For more information, it is best consult a printer or reprographics specialist.
Refunds
If the high resolution image you ordered is unavailable, we will fully refund your purchase. Otherwise, digital images scans are a service, not a tangible product, and cannot be returned or refunded once the download link is used.
Cartographer
Charles Frederick Hoffman (February 29, 1838 - June 20, 1913) was a German-American topographer. Born in Frankfurt, Germany, Hoffman attended engineering school in Germany before immigrating to the United States. He arrived in California in 1858 and was recruited by Josiah Whitney to the California Geological Survey, where he worked as a topographer. Hoffman is credited with introducing topography to the United States and helped explore the Sierra Nevada Mountains from 1860 to 1870. He then spent 1871 and 1872 as a Professor of Topographical Engineering at Harvard University, before returning to California to continue his work with the California Geological Survey in 1873 and 1874. While a member of the Survey, Hoffman achieved several first ascents of mountains in the Sierra Nevada, including Mount Brewer, Mount Dana, and Tower Peak. After leaving the Survey, Hoffman worked as a consultant for major banking firms and other conglomerates examining and reporting on mining properties in British Columbia, Mexico, Alaska, Siberia, and along the Pacific Coasts of the United States and South America. He founded the Red Point and Hoghead Gravel mines in 1886 - 1887 for the Societe Anonyme de Golden River', a French corporation. He also worked as their manager for many years. Hoffman married Lucy Mayotta Browne in 1870, with whom he had four children. Mount Hoffman in Yosemite National Park, is named in his honor. More by this mapmaker...
Source
Sutro, A., The Mineral Resources of the United States, and the Importance and Necessity of Inaugurating a Rational System of Mining, with Special Reference to the Comstock Lode and the Sutro Tunnel in Nevada, (Baltimore: John Murphy) 1869.
References
OCLC 712654395.