The Pacific Crest Trail 50 (PCT 50)

This is an out-and-back course mostly on single track trail along the Pacific Crest Trail in east San Diego County. The trail features numerous climbs, particularly on the "out" portion, as well as some rocky sections. It begins at an elevation of approximately 3,000 feet, reaching 6,000 feet in the Laguna Mountains. (Note: routing is subject to final approval from the U.S. Forest Service.)

You will encounter 7,500 feet of elevation gain, with about 2,500 gain within the first part of the run. This makes for a very fast, downhill return (if your quads can take it!).