Relief shown by hachures. Prime meridians: Washington and Greenwich. Shows railroad surveys and locates Native American tribes. On plates 65-66 possibly from Colton's General Atlas, Containing One Hundred And Eighty Steel Plate Maps And Plans, On One Hundred And Eight Imperial Folio Sheets. Text on verso includes details about the territories of New Mexico, Arizona, Colorado, Idaho, and Dakota. Also includes deatiled information about the state of California, including population, land allotment, and crops. 1 map : col. ; 41 x 67 cm. This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library.