With beautiful hanging valleys, picturesque vistas, and forest meadows that seem to cling to the sky, Heil Valley Ranch is a playground for wildlife. It only takes one visit to this 5,020-acre property to turn a sedentary person into an outdoor enthusiast.<br />
There are 5 trails located here ranging from easy to moderate with the longest trail topping out at 5.2 miles. Dogs are not allowed due to wildlife concerns.
From Boulder, go North on Highway 36 to Lefthand Canyon Road, turn left here. Go about .5 mile to Geer Canyon Road, turn right here. Go about 1 mile to parking lot.
http://www.tripleblaze.com/trail.php?c=3&i=116