The National Park Service is investigating a woman who appears to have traveled from New York to several Western states in recent weeks in order to paint pointless, embarrassingly unsightly drivel all over a bunch of America’s most pristine and most iconic national parks. The crap sketcher is Casey Nocket, Modern Hiker reports. Nocket, 21, left her trail of twaddle in nearly a dozen federally-protected parks including Yosemite National Park, Rocky Mountain National Park, Crater Lake National Park, Joshua Tree National Park and Bryce Canyon National Park.