Peru Creek is a 6 mile moderately trafficked out and back trail located near Dillon, Colorado that features a river and is good for all skill levels. The trail is primarily used for hiking, trail running, and cross country skiing and is accessible from March until November. Dogs are also able to use this trail.
cross country skiing
This is one of my favorite places to go cross country skiing in the winter, and I decided to take my kids on the trail in the summer. It's absolutely beautiful in any season but it is a very different experience in the summer. In the winter it's isolated -maybe you'll run into one or two other skiers/snowshoers. In the summer there are cars and motorbikes on the road, which is a little annoying but understandable since it is, in fact, a road. I would definitely recommend this as a fun hike to do with kids -the abandoned mine/ cabin are really cool and the road makes it easy to walk. But if you are looking to really be in the woods, away from it all, I'd pick a different option (at least in the summer).
Went a few weeks ago, the snow was about 3 ft deep, but the snow in the trail was so compacted you can easily do this hike without ice cleats or snow shoes. Beautiful beautiful scenery, looked like a winter wonderland!