Here is what is listed on Pike/ San Isabel NF website:

"Although recreational shooting is generally permitted in the National Forest there are exceptions and conditions. The exceptions are normally outlined in Special Orders. In this case, Special Order 91-08 prohibits recreation/target shooting in all of El Paso County including the area west of Monument. You can obtain a map from us that shows you exactly where these restrictions apply. The best alternative area for recreation/target shooting west of Monument is off Mt. Herman Road and down Forest Development Road (FDR) 322A. This area is located in Teller County approximately six miles from Red Rocks Ranch Road. The other common sense conditions are as follows: (1) you cannot discharge a firearm in or within 150 yards of a residence, building, campsite, developed recreation site or occupied area (2) you cannot discharge a firearm across or on a Forest Development road or a body of water adjacent thereto, or in any manner or place whereby any person or property is exposed to injury or damage as a result in such discharge (3) you cannot discharge a firearm into or within any cave. I would also advise you to familiarize yourself with Colorado State law regarding possessing and transporting firearms."

-Dana