Prime meridian: Washington. Engraved by: E.B. Dawson. From: Tanner's universal atlas, no. 25. Below border at left: "Entered according to act of Congress, in the year 1836, by H.S. Tanner, in the clerk's office of the Eastern District of Pennsylvania." Inset map: Western Part of Michigan. Includes table of steam boat routes. Shows county divisions. 1 map: col.; 33 x 27 cm.