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NUTS Karhunkierros

NUTS Karhunkierros 83K

83 km·175m gain·Kuusamo
ultramountainforesttechnicaltrailpoint to pointloop

Photo by Massimo Sartirana on Unsplash

Distance83 km
Gain175m
Date22 May 2026

Registration is closed for NUTS Karhunkierros 83K

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About This Race

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Elevation Profile

Elevation profile estimated from terrain data. Actual course may differ.

The course gains 175m over 83km, with the steepest section between km 35–km 35.

Location

Practical Info

Accommodation

The event is based in Ruka village, which serves as the finish area and main event hub.

Best For

trail_runnersultrarunnersadventure_seekers

Notable Features

The race follows the legendary Karhunkierros trail through Oulanka National Park, featuring technical terrain with suspension bridges, river gorges, and wilderness sections. The longest distance covers 166 kilometers with a demanding 36-hour cutoff time, while GPS tracking is available for the ultra distances to help supporters follow runners through the remote wilderness.

Other Distances at This Event

13 km

46m gain

34 km

102m gain

55 km

153m gain

166 km

309m gain

The ultimate ultra challenge covering the legendary Karhunkierros trail from Ruka to the Arctic Circle and back. This demanding 166-kilometer journey offers fell summits, deep wilderness, and represents the pinnacle test of endurance on Finland's most famous trail.