In July 1864, the members of the California Geological Survey named the peak after Josiah Whitney, the State Geologist of California and benefactor of the survey. During the same expedition, geologist Clarence King attempted to climb Whitney from its west side, but stopped just short. In 1871, King returned to climb what he believed to be Whitney, but having taken a different approach, he actually summited nearby Mount Langley. Upon learning of his mistake in 1873, King finally completed his own first ascent of Whitney, but did so a month too late to claim the first recorded ascent. Just a month earlier, on August 18, 1873, Charles Begole, A. H. Johnson, and John Lucas, all of nearby Lone Pine, had become the first to reach the highest summit in the contiguous United States. As they climbed the mountain during a fishing trip to nearby Kern Canyon, they called the mountain Fisherman's Peak.