The course is a 10 mile loop, completed 10 x for the 100 miles. There are no roadcrossings and the surface is firetrail, access tracks and singletrack. Fully marked with proper signposting around junctions and marshalling at crucial points. At night we use lightsticks in strategic places. This is a tough loop! We have measured the altitude rise and drop multiple times at 1520ft per lap, making the 100 15200ft in climb, see below altitude profile.
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