Iain Ridgway submitted this route:

10.9 mile loop of Rutland State Park, and abandoned Prison Camp and Barre Falls Dam Recreation area. The route is almost all closed to traffic and uses 4 x 4 trails, forest roads and water authority access roads to tour the area.

Anyone who has driven to or through the Roaring Fork Valley has surely laid eyes on Mt. Sopris. This mountain dominates the skyline over Carbondale, Colorado and stands at 12,965', towering over the ~6,000' valley floor. It's certainly possible that someone has gone faster than 2:31:09, TH to TH but I haven't seen any evidence to indicate so. It's a beautiful route! Go run it!

Standard trail from Thomas Lakes TH to East summit and back.  The route has a Strava segment.