Map of Oregon and upper California, from the surveys of John Charles Frémont and other authorities / drawn by Charles Preuss under the order of the Senate of the United States ; lithy. by E. Weber & Co., Balto.Frémont, John Charles, 1813-18901848Appears in 31st Cong., 1st Sess., House Doc. 17, 1850, serial set #573.Covers California, Nevada, and portions of western Arizona and Utah. The map is approximately the southwestern quarter of the larger map with the same title, apparently run off to supply demand after gold discovery in California.cartographic