Just west of the town of Lyons, you'll find the rolling grasslands and sandstone buttes of Hall Ranch. The over 3,000 acres of open space provides excellent viewing opportunities for wildflowers, animals, and scenic landscapes. <br />
There are 5 trails ranging from moderate to difficult with the longest trail topping out at 4.7 miles. Dogs are not allowed due to wildlife concerns.
From Boulder, take US 36 / Foothills Hwy. north toward Lyons. Turn left on Hwy 66, then left on Hwy 7 / St. Vrain Rd. in Lyons. Trailhead is on the right.
http://www.tripleblaze.com/trail.php?c=3&i=272