One of my favorite all time trails and Runner's World thinks so too as their October 2009 trail of the month Totally run able or easy walking as it really does stay pretty close to "level" . Start at Deer Valley at about 8000 feet and end at the Canyons at about 6600 feet. The whole trail is actually 30 plus miles if extended to Pinebrook. The Mid Mountain Marathon in September every year is a spectacular event. Many variants to go shorter particularly on the Deer Valley Park City Mountain Resort end. Hats off to Mountain Trails and all the other participating organizations and landowners for building and maintaining this gem!