Although the petroglyphs are set in stone and have been here for hundreds of years, they now face a difficult and uncertain future. Their survival is determined by many things, and many of these things have a negative impact on the petroglyphs. Nature in general is a major problem. Weather and erosion speed up the process of damaging the petroglyphs. And then when a human element is added, the petroglyphs really have a bad survival outlook.
Unsupervised visitation is a major problem.
People go into unregulated sites and dig and destroy the images, sometimes trying to remove them altogether. Even just touching an image with your hands speeds up the deterioration, as the oils in your hand work as an acid against the rock. Another major problem is vandalism. People do not respect the past, and many have gone and spray painted over the images. One further area of concern is urbanization.