Picacho is an unincorporated community in Imperial County, California. It is located on the Colorado River 29 miles south-southeast of Palo Verde, at an elevation of 203 feet. Picacho, now a ghost town, was an early mining town on the Colorado River. It was named Picacho, Spanish for "big peak", after a nearby mountain of the same name. The original townsite itself is beneath Imperial Reservoir, but remains of some of the ore mills are above the lake level.