This side canyon off of CO Highway 141 is filled with boulders. Some are great, some need cleaning, but the potential is there.

You're already secluded simply by being near Gateway. Going past the town and into the canyons makes you even more secluded (read: no cell service whatsoever).

Along with the County Line Boulders, there's ton of potential for those willing to drive, hike, and scout before they boulder.