Frozen wilderness trail in Alaska with snow-covered spruce trees and aurora borealis in the night sky
WinterExtreme
Route 12

Iditarod Trail Invitational

Alaska, USA

Distance

1,600 km

Duration

10–30 days

Elevation

15,000m

Route Map

Start  Finish · Map data © OpenStreetMap contributors

Elevation Profile

Gain

+1,340m

Loss

1,390m

Max

1,100m

Key Points

Alaska Range · 700m · 200km
Rainy Pass · 1,100m · 300km
Kaltag Portage · 500m · 700km

About This Route

The Iditarod Trail Invitational is the world's longest and coldest winter ultra-endurance race, following the historic Iditarod Trail from Knik to Nome, Alaska. Riders travel on fat bikes through frozen wilderness, facing temperatures as low as -50°C, whiteout conditions, and complete isolation across the Alaskan interior.

Route Highlights

  • World's longest winter ultra-endurance race
  • Temperatures can reach -50°C
  • Follows the historic Iditarod sled dog trail
  • Passes through remote Alaskan villages
  • Annual race held in February–March

Route Details

Start

Knik, Alaska

Finish

Nome, Alaska

Best Season

February – March (race only)

Surface

Frozen trail, snow, ice

GPX Track

Available for download

Community Ride Reports

First-hand accounts from riders

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