Las Vegas Review-Journal Park Service solicits ideas for taming Zion mob scene 2016-10-22 - tor Use Management Plan now in development.Similar open houses will ZION NATIONAl PAPK BRETT LE BLANC/ LAS VEGAS REVIEe-JOURNAL Hikers scramble toward the peak of Angels Landing during the last half-mile stretch of the strenuous trail in Utah’s Zion National Park.