39-year-old Charles Barrett received his sentence on Tuesday after being found guilty of aggravated sexual abuse and abusive sexual contact earlier this year.
Documents show that he assaulted a woman three times while he was working and living in Yosemite.
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During the trial, three other women also said Barrett sexually assaulted them, but he was not charged for those assaults.
Attorneys say he used his status as a professional climber to lure and intimidate victims.