Las Vegas Sun - Photograph : Tough Mudder in Beatty

September 24, 2017

Currently: 72° — Complete forecast

Competitors make their way through the "Firewalker" obstacle during the Tough Mudder in Beatty, Nev. Sunday, April 14, 2013. Tough Mudder events are hardcore 10-12 mile obstacle courses designed to test all-around strength, stamina, mental grit, and camaraderie.

Steve Marcus

Competitors make their way through the "Firewalker" obstacle during the Tough Mudder in Beatty, Nev. Sunday, April 14, 2013. Tough Mudder events are hardcore 10-12 mile obstacle courses designed to test all-around strength, stamina, mental grit, and camaraderie.