Famed Double Arch Collapses in Glen Canyon National Recreation Area The New York TimesTwo ancient North American structures crumble as tribes forewarn impending doom: ‘Bad omen’ New York Post Popular 190-million-year-old Lake Powell geological feature collapses KSL.comPopular arch collapses in Glen Canyon National Recreation Area CNNPHOTOS: Lake Powell’s popular ‘toilet bowl’ arch collapses ABC4.com