The Town’s Rhyolite Bike Park, 1701 Crystal Valley Parkway, currently includes a beginner downhill flow line with a return uphill trail, an intermediate downhill flow line, an advanced jump line, and an entry level pump track.

The site has been adopted by Castle Rock Bike and Ski through the POST Partners volunteer program and helps lead a group called the Dirt Crew, who helps maintain and improve the bike park. If interested in joining the group please contact Mark Neel at mhneel@castlerockbikes.com or call 303-688-1722 or the POST Partners coordinator at 303-814-7456 or postpartners@crgov.com.