One-Way Uphill is a hiking and biking trail in Castle Rock, Colorado. It is within Rhyolite Regional Park. It is 0.5 miles long and begins at 6,483 feet altitude. Traveling the entire trail is 0.1 miles with a total elevation gain of 31 feet. The 3-panel kiosk entry information is near the trailhead. There are also restrooms and a shelter.
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