Mammoth Marathons Where do YOU want to run?
Mammoth Marathons is proud to partner with:

Grand Valley Marathon

Grand Valley Marathon
Marathon, Half Marathon, 10k, 5k
May 9, 2009

Bear Lake Marathon

Bear Lake
Marathon, Half Marathon, 10k
June 13, 2009

Bear Lake Idaho
Marathon only
June 12, 2009

Little Grand Canyon Marathon

Little Grand Canyon
Marathon, Half Marathon, 10k
September 12, 2009

 

Mesquite Marathon

Mesquite Marathon
Marathon, Half Marathon, 10k, 5k
November 21, 2009

 

Scofield Tri