Siena Reservoir Trail is a 1.2 mile lightly trafficked loop trail located near Broomfield, Colorado that features a lake and is good for all skill levels. The trail is primarily used for mountain biking and is best used from March until November. Dogs are also able to use this trail but must be kept on leash.
dogs on leash
There is a trailhead at Siena Reservoir so that no surface road riding is necessary. There's no shade on the trail, but lots of picnic sites with shaded tables for resting.
It's a path perfect for young kids and out of state visitors. You get a good view of the mountains. It is not paved all the way around, but still ok for strollers. Plenty of bathrooms and picnic tables and benches.
Great place for walking/running with the dog.