Important compilation of documents relating to the conquest of California and the beginning of the California Gold Rush. Issued as House Ex. Doc. 17, 31st Congress, 1st Session. "This important volume contains the official correspondence and documents relating to California, 1847-49, and is the most extensive source of authorities covering the period" - Zamorano. The maps include "Map of Oregon and Upper California from the Surveys of John Charles Fremont" with indication of the Gold Region; George Derby's "Sketch of General Riley's Route through the Mining Districts, July and Aug. 1849" (Wheat, Gold Region 79) which includes San Francisco & Monterey; the entrance to San Francisco Bay; "Map of Fort Hill, Monterey" from Lt. Warner's Field Map; plus route of Major Beall's expedition against the Apaches, Baja California and Port Escondido. With ink ownership signature of James A. Schumacher, dated 1850, to front free endpaper. Howes C53; Kurutz 106b; Wagner-Camp 179b:2; Wheat Books 31; Zamorano Eighty 14.