1. Oregon, Upper California & New Mexico; published by S. Augustus Mitchell, N.E. corner of Market & 7th St. Maps University Of Michigan Public content 1845. Dahl, James, former owner and Mitchell, S. Augustus (Samuel Augustus), 1792-1868. Relief shown by hachures and spot heights. Includes the gold region of California. Prime meridians: Greenwich and Washington. "36." "Entered accord...