The 2021 Clear Creek Ultra is an invitation only, 10-hour race. Only MUTS members and those eligible for the MUTS grand slam will be invited and allowed to enter. The course is a single track, one mile loop. Creeks are crossed, hills are to be conquered. This mile loop is deceivingly cruel but too beautiful not to run again and again. When you are done running, grab some hydration and walk a few laps with friends.