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Mantario Marathon

McDougalls Landing, Canada • 27-28 Sep 2025

Mantario Marathon is a 2-day, self-supported stage run on the Mantario Trail in Whiteshell, Manitoba. 64 km in two 32 km days, with an overnight camp at Moosehead Lake. It follows a Fat Ass ethos: no fee, no aid, total self-reliance.

Participants must carry gear and navigate terrain through boreal forest and Canadian Shield, with water crossings and elevation. Day 1 goes from Caddy Lake South Trailhead to Moosehead Lake; Day 2 finishes at Big Whiteshell North Trailhead with staggered starts based on Day 1 results. Route maps and GPX are essential.

Open to run, walk, hike, or fastpack; inclusive of all genders. Visit the organization's website for the most recent information.

Canada Manitoba McDougalls Landing

Race information

Website Registration
64 km
32 km
32 Km Day 1
32 km
32 Km Day 2
Visit the organization's website for the most recent information.
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