Framed by the numerous mountain ranges throughout the state like the Bitterroots, Rockies, Sawtooth and Purcell mountains, the half marathon events sprinkled throughout Idaho feature some of the toughest terrain for running anywhere in the United States, which race organizers enthusiastically emphasize in events like Boise's Race to Robie Creek Half Marathon (the city has six half marathons all to itself, as shown below).

Boise

City of Trees Marathon & Half Marathon

Dry Creek Half Marathon

Famous Idaho Potato Marathon & Half Marathon

Fit For Life Half Marathon

Race To Robie Creek Half Marathon

Zeitgeist Half Marathon


Coeur D'Alene

Coeur D'Alene Marathon & Half Marathon


Lewiston

Lewis & Clark Half Marathon & 5K Fun Run


Mesa Falls

Mesa Falls Marathon & Half Marathon


Pocatello

Pocatello Marathon, Half Marathon, 10K & 5K


Rexburg

Teton Dam Marathon, Half Marathon & Relay