Six major bonanzas marked the first five years of the Comstock Lode. The Ophir bonanza was prosperous until 1864, producing 70,000 tons. Though rich, and having a length of at the surface, the ore body wedged out at a depth of . The Gould & Curry bonanza included of the El Dorado outcrop, but dipped southward into the Savage at ; the ore gave out by 1866. The Savage bonanza included this ore body and a second bonanza, an ore body shared with Hale & Norcross to the south, at the 600 foot 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.