Mud plaster, and adobe buildings erode extremely quickly, and as a result, they require a tremendous amount of upkeep. The images above show Ranger John, Intern Zach, Intern Christine, and a volunteer as they coat the Painted Kiva with a smooth coat of mud plaster, to finish covering up the erosion that was caused by the drainage of water off of the roof. One rain event can erode six inch deep canals in the walls of the kiva. The plaster that the group was using is made up of clay, sand, water, and an extremely small amount of straw. Mudding happens on a fairly regular basis, so if you are interested in getting dirty at Coronado Historic Site, tell us when you visit, or give us a call to show your interest.