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Map of Oregon and upper California from the surveys of John Charles Frémont and other authoritiescartographic material由 Frémont, John Charles, 1813-1890
出版 1848 -
Map of Oregon and upper California from the surveys of John Charles Fremont and other authoritiescartographic material由 Preuss, Charles, 1803-1854
出版 1848 -
Topographical map of the road from Missouri to Oregoncommencing at the mouth of the Kansas in the Missouri River and ending at the mouth of the Wallah Wallah in the Columbia;cartographic material