This broad cleft in the ground runs north to south near Burning Stone Mesa. Its sides are dangerously unstable, accounting in most places as a treacherous scree hazard (Pathfinder Gamemastery Guide 77). Parts of the arroyo’s bottom are exposed patches of the same blue stone as Burning Stone Mesa. Scoured by the winds that blow through the arroyo and covered with pebbles from past landslides, these streaks of blue stone often resemble pools of water. Several travelers have ventured into the arroyo, eager for a drink, and found themselves trapped within by the unstable walls. The bones of these travelers (as well as the treasures they were carrying when they died) lie scattered in the arroyo near the deceptively enticing stone.