The other day Tara and I decided to run the High Lonesome Trail. This is a really good trail that follows part of the Continental Divide Trail and passes through numerous high-mountain meadows and forests. We ran the trail from Devil's Thumb Park to Meadow Creek Reservoir and back. You can keep going all the way to Monarch Lake to the north, or you can cruz up Devil's Thumb Pass on the south. Since we have been doing a lot of longer runs, we wanted something a little mellow. Plus, there is snow up on the pass making any running up there difficult.
The trail is fairly easy, as it meanders along from north to south at the base of the Divide. The numerous mountain meadows or "parks" are beautiful, and worth a quick stop at each one. The trail sees little traffic, so you are likely to be the only runner out that day.