Old logging roads converted to x-country ski trails. All singletrack but with wide lanes. Rocks, ruts, logs, and gullies. Snow is usually clear by mid-June, and there are very few people using the trails in summer. The trail system crosses Forest Road 101 that you can ride to the top and take the trails down; but the trails aren't that tough. Trails well marked for skiiing, good parking, and many camping opportunities. Meadow Loop Trail and Little Laramie Loop. Harder than Corner Mountain Trails.
Take US HWY 130 west of Laramie to through Centennial into the Snowy Mountains. A few miles past Centennial, still on US 130, pass over the North Fork Little Laramie River and turn right into to the Little Laramie Trailhead. Pick up a map when you pass the Ranger Station/Visitor Center before the trailhead.
http://www.singletracks.com/item.php?c=1&i=1639