Iron Mountain has some great boulder problems. The boulders are spread out, but many can be found just by looking near the base of the larger rock formations. Several of the problems are fairly low with good landings.
Getting There
The boulders are scattered, so directions should be provided for individual problems. In general, look near Turtle Rock, Rubik's Ridge, and at boulders that are close to the highway on the right side as you drive away from Keystone.