Backcountry Wilderness Half Marathon

Course

A single 13.1-mile loop that is entirely dirt, gravel and singletrack, through the Highlands Ranch Backcountry Wilderness Area and the Douglas County East/West Trail. Start and finish are on Monarch Blvd in Lone Tree, with four aid stations and hilly, mountain-view terrain.

Key dates

• !
  Registration
  Open now
• ★
  Race day
  Sat 7 Nov 2026

About

This 13.1-mile race winds through the Douglas County East/West Trail and the scenic Highlands Ranch Backcountry Wilderness Area—offering singletrack, hills, and breathtaking views at every turn.

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