(Rick Egan | The Salt Lake Tribune) Brooke Hontz, the Vice President of Development for Extell Utah, points out the boundaries of the new Mayflower Ski Resort, which is being built on the backside of Deer Valley, on Friday, Dec. 16, 2022. Extell Development, builder of the resort, has agreed to commit more than 3,100 acres of the future ski area to a conservation easement.