I have marshalled The 3 Peaks Cyclo-Cross for the past 20 years as a member of BPMRT and thought it was about time I actually did it. It is staged in the Yorkshire Dales National Park every year at the end of September. It is the toughest and biggest Cyclo-Cross event in the UK!
Total distance: 61kms (38 miles)
Road: 28kms (45mins – 1hr 5mins)
Unsurfaced: 33kms (2hrs 15mins – 4hrs 40mins)
Unrideable: 6kms – 8kms (dependent on individual ability & prevailing conditions)
Total climbing: 1524m (5000ft)
http://3peakscyclocross.org.uk/course-details/