Officials are investigating what caused a crack in a Colorado ski lift that forced the evacuation of over 170 stranded skiers and snowboarders.

For two decades the Cuchara ski area in southern Colorado sat dormant, its former owners having packed up and left overnight. Now it’s being reborn as a county-owned ski area with a mission of inclusivity, thanks to longtime local efforts backed by state, federal and private funding.

The Gondola at Winter Park Resort in Colorado experienced a malfunction and stopped around noon Saturday, leaving visitors suspended mid-air.