System Name: Stone Mountain Park P25
Location: Stone Mountain, GA
County: DeKalb
System Type: Project 25 Phase I
System Voice: APCO-25 Common Air Interface Exclusive
System ID: Sysid: 6AF WACN: BEE00
Last Updated: November 11, 2020, 5:08 pm CST   [Changed Site # 001 (Stone Mountain) to 001 (Stone Mountain)]
System Notes

P25 system operated by the Stone Mountain Memorial Association (SMMA), a self-supporting state authority charged with managing and preserving Stone Mountain as a Confederate Memorial and public recreation area.

SMMA directly manages and maintains all public areas (including the Natural District which makes up two-thirds of the Park and includes the Mountain itself, roadways, and utilities), provides public safety services (including police and fire), and supports historical and educational programs.

SMMA has a long-term public/private partnership with Herschend Family Entertainment Corporation (HFEC), a private corporation, allowing HFEC to manage all commercial operations within the Park; lodging, attractions (including the Crossroads theme park), retail, and special events. HFEC has a management agreement with Marriott for management of Stone Mountain Park’s two hotels and golf courses.

Stone Mountain Park Fire Department is a surprisingly well-equipped all-hazards department. They usually run Rescue 1 (Ford Excursion specially equipped for patient transports off the top of the mountain or elsewhere) on EMS calls and Engine 2 (Type I engine on a 4-door FL80 chassis) on fire calls, but they also have at their disposal Engine 1 (F-Super Duty chassis with supply lines), Tanker 3 (a GMC commercial chassis with an exposed elliptical poly tank and 2 rear-mounted monitors that is equipped with Hi-Rail wheels to run as a road-rail vehicle on the railroad tracks), Engine 4 (6X6 Polaris ATV with pump and tank), Rescue 2 (Ford F800 4-door with a utility body that carries, among other things, a 2,000 foot rope capable of allowing rescuers to repel from the top of the mountain to the bottom), and Rescue 3 (F-350 crew cab pickup generally operated by the supervisor). The fire department also has two patient-transport-capable Polaris ATV's (Rescues 4 and 5). The fire station is generally staffed by 2 to 3 reserve firefighters (full time firefighters at other departments) from around 9 AM to midnight on high activity days; less during slow periods. SMPFD firefighters are assisted by SMP police officers, some who have limited EMS or fire training. DeKalb County Fire Rescue (usually Engine 11) responds to incidents in the park when SMPFD is not staffed (such as medical calls at the hotels in the middle of the night) or requires assistance.

The Police Chief is a licensed rotor wing pilot, and Stone Mountain Park Police use a helicopter (called "Helo 1" on the radio) stored at Briscoe Field in Lawrenceville over the park on busy weekends. There's a helipad on top of the Public Safety building on Hugh Howell Road, but the helo only lands there intermittently; it isn't actually based there full time.

Sites and Frequencies

Red (c) are control channel capable frequencies
RFSS Site Name Freqs
1 (1) 001 (1) Stone Mountain 851.9375853.7375856.6875857.0875857.6875858.0125858.3375c


Crossroads (Theme Park/Attractions)

TG 31 is effectively primary operations at Crossroads. At each attraction, most staff have a Hytera analog conventional simplex radio (unknown frequencies) to communicate with the other staff at that particular attraction (one channel per attraction), while at least one staff member also carries a Motorola P25 trunked radio to communicate outside the attraction.

DEC HEX Mode Alpha TagDescriptionTag
3001eDCrsrds 911 AccesCrossroads 1 Employees to Park Public Safety Dispatcher LinkOther
3101fDCrsrds OpsCrossroads 2 Attractions (including Train)Other
32020DCrsrds CustCrossroads 3 CustodialOther
33021DCrsrds MaintCrossroads 4 MaintenanceOther
34022DCrsrds DucksCrossroads 5 Transportation (Duck Boats (360s) + Parking Control & Shuttles)Other
35023DCrsrds ParadChristmas Parade ControlOther
36024DCrsrds 36Crossroads Ops 36Other
Stone Mountain Park
DEC HEX Mode Alpha TagDescriptionTag
2002DDPS DispatchPublic Safety Dispatch (Police, Fire & EMS)Multi-Dispatch
3003DDPS Tac 1Police Tac 1Law Tac
4004DDPS Tac 2Police Tac 2Law Tac
5005DDPS Tac 3Police Tac 3 Events (+ Officers at Crossroads when busy)Law Tac
6006DDPS Tac 4Police Tac 4 Emergency OpsEmergency Ops
7007DFire TacFire TacFire-Tac
1000aDCallboxesEmergency Callboxes to 911Emergency Ops
8008DDPS Tac UnkPolice/Fire AlternateEmergency Ops
20014DSMMA OpsSMMA Park OperationsPublic Works
21015DPark Svcs 1Park Services / Maintenance PrimaryPublic Works
22016DPark Svcs 2Park Services / Maintenance AlternatePublic Works
Atlanta Evergreen Marriott Conference Resort
DEC HEX Mode Alpha TagDescriptionTag
40028DMarriott EngMarriott EngineeringBusiness
41029DMarriott AltMarriott AlternateBusiness
4202aDMarriott ConfMarriott Kitchen/Conference RoomsBusiness
4302bDMarriott HousekpMarriott HousekeepingBusiness
4402cDGolf CourseMarriott Golf OperationsBusiness