Riding up hills is the ultimate challenge for a cyclist. It's the quickest way to gauge fitness levels, the best workout, and then there's the reward of an exhilarating descent. This guide is a compilation of some of the best hills in Yorkshire and the Peak District. It's not a definite list of the Top 50 toughest climbs. Instead, author James Allen has selected some of the most iconic, the most thrilling, the most interesting, and most varied—as well as the toughest—hill climbs that this region has to offer. There's something here for everyone, whether you're a "Weekend Warrior" or a serious road racer. Just get out there and enjoy the ride.