The 2012 Tough Mudder is definitely something to flip about. More than 12,000 people got dirty on this 1000 acre farm at the Highlands Sportsmen's Club in Cascade.
To be a Tough Mudder you have to complete a 12 mile obstacle run where staying on your feet is not easy. People are running through mud, fire, freezing water and 10,000 volts of electricity.
The Tough Mudder runs through Sunday where thousands more are expected to take part.
Local 5's Donald Robinson has all the details.