The Tahoe Sierra 100 is not the hardest 100 in the country with 20,500 ft of climbing and 24,006 ft of decend. Its by far the hardest 90 miler in the country. This is the 4 th year and growing!! Only 200 racers with only 100 spots left. Reg opened Jan 1st
Go to www.gloablbiorhythmevents.com