The sixth annual Moose Loop Trail Challenge is a community challenge to walk, run, or bike the amazing Anchorage trails that loop around the city before the snow flies. This family-friendly event is a fundraiser for the Anchorage Park Foundation, a nonprofit working to improve parks and trails. The challenge takes place September 12th to 19th and is perfect for all ages and fitness levels. When: September 12 - 19, 2026 Where: Anywhere along the 32-mile Moose Loop trail system Challenges: Bike, walk, or run a 5K, 10K, Mini Moose (25.75K), or Mighty Moose (51.5K) Register Sponsor Donate A big THANK YOU to our growing number of 2026 Moose Loop Trail Challenge sponsors!