When Jerad Fischer started digging to build jumps at Eaton Park, he was shoveling on his knees.
"I shattered my ankle 18 months ago, and I haven't been able to get out on a bike, so I started going out there, because digging was my hobby," said Fischer, 31.
Fischer is part of a passionate crew of local mountain bikers who have been revamping and improving the dirt jumps at Eaton Park, in Gunbarrel. (The riders simply call it "Gunbarrel.")
Though there have been jumps there for years, the digging gained speed in the fall. It all started with a web search by Kevin Rauhauser, a CU student who grew up in Boulder and learned to ride in Gunbarrel.