The Castle Rock Repeater Group, Inc., is a non-profit corporation registered under the non-profit laws of the State of Colorado. The CRRG operates three repeaters in the Denver, CO metro area, for the benefit of the amateur radio community, ARES Groups, public service agencies, and the general public. The CRRG repeaters are open systems, membership in CRRG is not required, but encouraged. Please be considerate to breaking stations and listen for emergency traffic at all times.  Make visitors welcome and give them any assistance you can.