Three Peaks Cyclo-cross The Three Peaks Cyclo-cross is an annual event taking place in the Yorkshire Dales. The route takes in the Yorkshire Three Peaks, and a total distance of 61km (38 miles). 28km of the route is on road, 33km on unsurfaced ground, and 6-8km on unridable terrain, depending on rider ability. The Three Peaks Cyclo-cross takes place on the last weekend of September. Competitors must use cyclo-cross bikes, rather than road or mountain bikes, and must carry a whistle and survival bag at all times.