Roxborough's tilted red rocks are a protected National Natural Landmark

Roxborough State Park sits in the foothills near Littleton, in northwest Douglas County. Its big draw is rows of red sandstone slabs tilted up at a steep angle. This is the Fountain Formation, the same rock that makes Red Rocks and the Flatirons, laid down from older mountains that wore away long ago.

This scenery is special enough to earn real protection. Managed by Colorado Parks and Wildlife, Roxborough carries several official honors, including National Natural Landmark, state natural area, and National Archaeological District status. Those designations are why the place still feels so wild, and why the rules run a little stricter than at many state parks.

Good to know before you come: no pets are allowed anywhere in the park, including in your car, so wildlife stays calm and easy to spot. Bikes are kept off the trails too, which makes this a peaceful hiking and wildlife-watching place. Leave rocks, plants, and artifacts where they are so the next visitor sees them as you did.

A few practical notes. You will need a valid park pass or daily entry. Cell signal is weak, so plan ahead. Prairie rattlesnakes live here, so watch where you step and keep to the trail. You may also spot mule deer and black bears using the park.

Before you go, check the current park pass rules, hours, and any trail or visitor-center closures on the Colorado Parks and Wildlife Roxborough State Park page.