Select a tag to view hills associated with it.
The bomb (aka tough) designates a very difficult hill. Read in tandem with the BRENTACOL ranking, this label will tell you something about the intensity of a climb. For example, Mount Greylock (South) scores 908, while Mount Tom scores 749 (of course, Mount Tom gets the more severe "skull and crossbones" tag, but the same principle applies). However, Greylock should be possible for any fit cyclist without special gearing and without stopping. Mount Tom, because it is so steep, will be a tough climb for just about anyone.