Cast a line, take a hike, mountain bike world-class trails, go horseback riding, admire wildlife, climb dizzying spires and learn more about the natural world and area history.
Welcome to Jefferson County Open Space (JCOS). Explore the outdoors on more than 52,000 acres and 210 miles of trails. Activity Guide | Trail Rating Guide
We promote safe and enjoyable visits to 28 Open Space Parks while practicing responsible management of natural and historic resources. Explore the variety and richness of these resources at Lookout Mountain Nature Center and Hiwan Homestead Museum. Plus, access all the offerings of Jeffco Parks, the Jefferson County Government department that unites JCOS with Boettcher Mansion, Colorado State University Extension and the Fairgrounds.
In 1972, a grassroots volunteer campaign inspired voters to approve a one-half cent sales tax. The tax funds were dedicated to creating JCOS and funding land acquisition, preservation, maintenance and trailbuilding. Thanks to local purchases, dedicated volunteers and widespread public support, visitors enjoy protected places to play without entry fees. JCOS funds also support projects in cities and park and recreation districts, enriching life in every corner of Jefferson County.
Citizen Survey 2011 Report
Locations and General Information
Reglas Y Reglamentos
Bald eagle at Crown Hill Park photographed by park visitor Tim Cazier and submitted through Facebook. Stay informed about Jeffco Parks by subscribing to Panorama.
Last Modified: Apr 8, 2013 02:33 PM