Trail · Colorado
Leashed dogs welcome. Boulder's Voice and Sight tag scheme allows off-leash on some Open Space trails - the tag is a permit, and it is checked.
The Flatirons straight up out of a meadow, with trails from a flat mile of grass to a serious climb. Boulder's front door to the mountains.
The policy above is the standing rule of the agency that manages this land, as published on its own pages. Official page.
Rules change, and seasonal beach rules change twice a year. Check before a long drive.