• Tejay Van Garderen attacks the yellow jersey leaders on the final climb of Stage 4 from Aspen to Beaver Creek at the 2012 USA Pro Cycling Challenge. Van Garderen finished third in the stage to win the overall race leader's yellow jersey, but went on to place second behind Christian Vande Velde.
  Getty Images / Special to the Daily | Getty Images North America

  

• A member of the Bontrager Cycling Team signs a young fan's jersey before the Stage 3 start at the 2013 USA Pro Challenge in Breckenridge.
  Jessica Smith / jsmith@summitdaily.com | Summit Daily News

  

• Peter Sagan (#51) of Slovakia crosses the finish line to win Stage 1 of the 2013 USA Pro Challenge in Aspen. Aspen is the only town to host at least one stage for all five years of the race.
  Getty Images / Special to the Daily | Getty Images North America

  

• Pro cyclist Andy Schleck of Luxembourg rides in a breakaway during the Breckenridge stage of the 2013 USA Pro Challenge. The 2015 race features two stops in Breckenridge and one finish at Arapahoe Basin — the first in history.
  Getty Images / Special to the Daily | Getty Images North America

  

• Peter Sagan of Slovakia stands at the start line before Stage 2 of the 2013 USA Pro Challenge in Aspen. Sagan and other big-name pros, including past winners Levi Leipheimer and Tejay van Garderen, won't join the start list in 2015, making room for young stars like 25-year-old Rohan Dennis and 25-year-old Taylor Phinney of Boulder.
  Getty Images / Special to the Daily | Getty Images North America

  

• Riders salute at the starting line before beginning Stage 3 of the 2013 USA Pro Challenge in Breckenridge. This year, Summit County plays host to four stages — the most in race history.
  Jessica Smith / jsmith@summitdaily.com | Summit Daily News

  

• Levi Leipheimer powers up Vail Pass on his way to winning the Vail time trial at the 2011 USA Pro Cycling Challenge. Leipheimer went on to be crowned the inaugural champion.
  AP / Special to the Daily | The Denver Post

  

• Christian Vande Velde pushes up the final section of Vail Pass for the Vail time trial during Stage 3 of the 2011 USA Pro Cycling Challenge. This year, the time trial makes its debut in Breckenridge with a whip-fast course through the streets of Breckenridge, including the Class 3 climb up Moonstone Road.
  Special to the Daily |

  

• Tejay van Garderen celebrates after claiming the second stage (and the race lead) at the 2012 USA Pro Cycling Challengey. Van Garderen is the most decorated champion in race history, with wins in 2013 and 2014.
  Special to the Daily |

  

• Crowds begin to gather early in the day on Independence Pass near Aspen at the 2012 USA Pro Cycling Challenge. This year, cyclists summit the 12,096-foot pass not once, but twice, for Stage 3 from Copper to Aspen and Stage 4 from Aspen to Breckenridge.
  Special to the Daily |

  

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