A very nice map of upper MidWest and Western US. The Dakotas are not yet separated and many counties haven't formed yet in the western portions of each state/territory. Lots of settlement and topographical detail. The counties are color-coded.
1871 Mitchell Map of Dakotas, Nebraska, Kansas, Colorado and Wyoming
County Map of Dakota, Wyoming, Kansas, Nebraska and Colorado
Map Maker Specifics
S Mitchell, 1871, Philadelphia
20 x 15 in. plus margins
Very good. Very light age toning, mostly in the margins. Issued centerfold with a slight split on the left. Colored.