Gold Line is a hiking and biking trail in Jefferson County, Colorado. It is within Gary R. McDonnell Park, Bellows Park, and Union Ridge Park. It is 3.6 miles long and begins at 5,772 feet altitude. Traveling the entire trail is 1.6 miles with a total elevation gain of 145 feet. The Oak Station Park-n-Ride parking can be seen along the trail. There are also trees, bicycle parking, shelters, a hotel, and a parking along the trail.
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