The trail begins on the north side of the monument for a demanding and hilly singletrack. You will find this trail to be technical and well built.
Take Broadway st. to 16th st. and turn north. Turn right on Big Lake rd. where you should watch out for the low R.R. bridges if you have your bikes on the roof of your car. Left at Mynster Springs rd. and then another left on Rainbow rd. to the monument entrance.
http://www.singletracks.com/item.php?c=1&i=1165