Relief shown by hachures and spot heights. Shows California's gold region and western trails. "Entered according to act of Congress in the year 1849 by J.H. Colton ..." Prime meridians: Greenwich and Washington. "Printed at Ackermans r[ooms 120?] Fulton St. N.Y." Includes 2 insets, ill., and distance table. 1 map: hand col.; 39 x 55 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.