You are invited on a journey that connects butterflies, ultra-running and film-making with resiliency, inspiration and hope that surrounds all of us...

A team of film-makers, runners, and pollinator advocates will be telling the story of the flight of the monarch butterfly seen through the eyes of ultra-runners who will run 50 km and 100 km segments to complete the same distance of 4,200 km (2,610 miles) from southern Ontario to Mexico in the fall of 2019. 

The Monarch Ultra is the first attempt to run across North America (Canada, United States and Mexico) in order to raise awareness of monarch butterflies who make the migratory journey every year, and whose populations are in steep decline. Our multi-day running adventure will invite runners to traverse wild and remote landscapes while building camaraderie, overcoming adversity, and sharing a singular adventure with monarch butterflies. The Monarch Ultra starts in Peterborough, Ontario and ends in the Sierra Madre Mountains, in Central Mexico, with runners following the same migration route as monarch butterflies. Fifty or more ultra-runners will be invited to run a leg of 50 km or 100 km each through a diversity of landscapes including mountain paths, forests, meadows, deserts, and cities. Most importantly, the Monarch Ultra is an opportunity to connect us as human beings in Canada, USA, and Mexico with common goals of Earth stewardship and biodiversity conservation. 

Upcoming Races

Sep 20 2019
50 KM
Point-to-Point Course
3 Elevation Rating
Hilly, ~2500-7500 feet in 50 miles
3 Surface Rating
Some rocks, root, and/or ruts
Sep 20 2019
100 KM
Point-to-Point Course
2 Elevation Rating
Rolling, ~2500 feet in 50 miles
1 Surface Rating
Paved or very smooth surface


No Past Races
We try to keep the most accurate information about this race, but changes do happen. Always visit the official race website for the most up to date information.
The Back 40 Trail Run
  • Dec 14, 2019
  • Bella Vista, AR
40 Miles