Mitchell, S. Augustus "Oregon and Upper California"

Mitchell, S. Augustus "Oregon and Upper California"

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S. Augustus Mitchell. "Oregon and Upper California". From A New Universal Atlas.
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Philadelphia: S. Augustus Mitchell, 1848. 17 x 13 3/4. Lithograph transfer from engraved plate. Full original hand color. With manuscript line and text indicating "Humbolt's River." Some light staining; otherwise, very good condition.
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A fine pre-Gold Rush map of the westernmost United States in the mid-nineteenth century, showing the region at an interesting period in its history. The map is filled with myriad topographical details, including rivers, towns, and separate coloring for the territories. At the time there were only two territories, Oregon and Upper California, in the region later divided into Washington, Oregon, Idaho, Nevada, Utah and Arizona. This map is also fascinating in its depiction of the early exploration and development of the region. The "Great Interior Basin," between the Great Salt Lake and the Sierra Nevada Mountains is shown as unexplored, though Fremont's route to its southeast is noted. Early settlements and a coastal road are shown in California , and the old trail between Santa Fe and Los Angeles is also indicated. Of particular note is the prominent depiction of the Oregon Trail, shown snaking from present-day Colorado to the Columbia River. Locations of myriad Indian tribes throughout the region are noted. This map, one of the best of the region issued in mid-century, went through many different versions from it's first appearance in 1846 until the late 1850s. With the discovery of gold just one year in the future, this map shows the American west on the eve of the huge development to follow.