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The Colorado 9/11 Stair Climb took place at Red Rocks Park and Amphitheatre in Morrison on Friday, Sept. 11, 2026.
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This year marks the 18th annual stair climb to honor 343 FDNY firefighters and nearly 3000 people killed in the September 11, 2001, terrorist attacks. Each participant climbed the equivalent of the 110 stories of the World Trade Center.
