The beginner loop is 4.8 miles and is beginner to intermediate. Nice tight singletrack with only small elevation change. Some technical sections on the main loop. If you add all the diamonds it is 11.7 miles. Pretty good signs (Thanks CLIMB) and surrounded by streets and developments. Your never to far from civilization. Maps and more info available @ climbonline.org. Parking is on the street anywhere near the trailhead.