level; this ore body was played out by 1869. The Chollar-Potosi bonanza was consolidated in 1865. The 1875 Combination Shaft was a joint effort by Chollar-Potosi and Hale & Norcross. The Original Gold Hill bonanza consisted of the Old Red Ledge, long, wide, and deep. The associated Gold Hill mines were merged into the Consolidated Imperial by 1876. The Yellow Jacket shared the Gold Hill bonanza on its north, and shared a second bonanza with Crown Point and Kentuck to the south, discovered in 1864. The Crown Point-Belcher bonanza was discovered in 1870. The ore body extended from the 900 to the 1,500-foot level (275 to 460 m), having a length of and a width of . The ore, the precious metal value of which was 54 percent from gold and 46 percent from silver, lasted only four years. The Consolidated Virginia bonanza was discovered at the 1,200-foot (365-m) level in March 1873. The ore body was long and wide, but terminated at the 1650-foot (650-m) level. Discovery of silver Gold was found in this region in the spring of 1850, in Gold Canyon (near present-day Dayton, Nevada), by a company of Mormon emigrants, one of whom, Abner Blackburn, was their guide. After arriving much too early to cross the Sierra, the wagon train camped on the Carson River in the vicinity of Dayton, to wait for the mountain snow to melt. William Prouse (also spelled Prows) soon found gold along the gravel river banks by panning, but left when the mountains were passable, as they anticipated taking out more gold on reaching California. Orr named the gulch Gold Cañón. Other emigrants followed, camped in the canyon and went to work at mining. However, when the supply of water in the canyon gave out toward the end of summer, they continued across the mountains to California. The camp had no permanent population until the winter and spring of 1852–53, when about 100 men worked part of the year along the gravel banks of the canyon with rockers, Long Toms and sluices. After nine years, the Gold Canyon placers were producing less, and many miners left for the Mono Lake placers. The gold from Gold Canyon came from quartz veins, toward the head of the vein, in the vicinity of where Silver City and Gold Hill now stand. As the miners worked their way up the stream, they founded the town