Urraca Mesa is a large mesa on the property of Philmont Scout Ranch. The mesa has a long history of mythical and supernatural associations, dating to the local indigenous tribes, some of whom believed it to contain the gateway to the underworld. There exist a variety of other more recent ghost legends, some from the land's Mexican occupants, others from those in the cattle trade who used it as a winter home for their livestock, and still others from the early days of the area's use as a Boy Scout ranch. These involve, among other themes, unexplained blue lights, wandering murderous monks, amorphous horsemen dressed in black, and a lost Scout.