Why isn't this on the map?

If this Canyon were anywhere else, it would be a major tourist attraction. As it is, it is almost impossible to find, is not visible from any highway and there are no signs marking its location. This brings up a really interesting (to me) issue about designating parks and wilderness areas. Does every colored rock in North America belong in a National Monument or National Park? What would happen if this place were so designated? Wouldn't there be a visitor's center and interpretive trails? How about railings to keep people from falling in? I think it is better off being obscure.