The Del Rio area covers a lot of ground, if you're talking about Del Rio, Texas that is. Where was it found? I mean the Pecos River area, the Devil's canyon area, that park area(Seminole Canyon), Lake Amistad, Ciudad Acuna or somewhere else. It looks painted by somebody, BUT (a) the paint isn't faded and (b) location is everything. Out in a cave or the park area, yes, it could be the wolf people, but like laying by the lake or a street in Acuna, then tamrock is right. Bright paint scares me, but who knows?