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Mammoth and June Mountain Ski Areas

System Name: Mammoth and June Mountain Ski Areas
Location: Various, CA
County: Mono
System Type: DMR Tier 3 Capacity Max
System Voice: DMR
System ID: HEX: S1 DEC: S1
Last Updated: July 21, 2026, 06:08 am UTC   [Added Talkgroup to: Mammoth Tamarack Lodge (4003 Tamarack Lodge 3)]

Sites and Frequencies

FCC Callsigns Map Site Locations Report
Key:###.####Ctrl control channel
June Meadows Chalet
Site 001 · 1
10 freqs · 1 control
854.1875Ctrl854.4375854.5875854.7375861.0125861.1625861.3375861.5125861.6625861.8375
Mammoth Lincoln Lift
Site 002 · 2
10 freqs · 1 control
854.8625Ctrl855.1625855.3375855.5125855.7625855.9375856.3125856.7875857.3125857.8375
June Rainbow Summit
Site 003 · 3
10 freqs · 1 control
854.3375Ctrl854.1375854.5125854.6625861.0625861.2375861.3875861.5625861.7125861.8625
Mammoth Chair 12
Site 004 · 4
10 freqs · 1 control
855.0375Ctrl855.3625855.5875855.7875856.4125857.4125858.8375859.3875859.8125860.3375
Mammoth Mtn Summit
Site 005 · 5
12 freqs · 1 control
854.9375Ctrl855.6875855.8375856.5125857.5125858.5125858.8125859.5125860.1625860.2875860.3125860.5125

Talkgroups

Talkgroup Category Report
Mammoth Operations
DEC Mode Alpha TagDescriptionTag
1000TUnknownUnknownBusiness
1001TWoollys Zip LineWoolly's Adventure Summit Zip LineBusiness
1002TUnknownUnknownBusiness
1003TSlope Maint 1Slope Maintenance 1Business
1004TSlope Maint 2Slope Maintenance 2Business
1005TGolf ClubhouseSierra Star Golf Course Clubhouse (Summer Only)Business
1006TBuilding MaintBuilding MaintenanceBusiness
1007TUnknownUnknownBusiness
1008TUnknownUnknownBusiness
1009TGondolasGondolasBusiness
1010THostsHostsBusiness
1011TTelecom/ISTelecommunications and Information ServicesBusiness
1012TJr Race TeamsJunior Race TeamsBusiness
1014TAlpine TeamsAlpine Ski Teams Instruction/TrainingBusiness
1015TLift Maint 1Lift Maintenance 1Business
1016TLift Maint 2Lift Maintenance 2Business
1017TLift OpsLift OperationsBusiness
1018TOps CallingOperations Base (545) CallingBusiness
1019TBusesBusesBusiness
1020TSki Patrol 1Ski Patrol 1Business
1021TSki Patrol 2Ski Patrol 2Business
1022TRace 1Race 1Business
1023TRace 2Race 2 (Race Queue Channel)Business
1024TSecuritySecuritySecurity
1025TSierra GolfSierra Star Golf Course (Summer Only)Business
1026TSnowmobile AdvMammoth Snowmobile AdventuresBusiness
1027TSnow Place 1Snow Placement (Plowing/Making)Business
1028TSnow Place 2Snow Placement (Plowing/Making)Business
1029TLift Construct 1Lift Construction 1Business
1030TLift Construct 2Lift Construction 2Business
1031TSports Sch CnynSports School Canyon LodgeBusiness
1032TSports Sch EagleSports School Eagle LodgeBusiness
1033TSports Sch MainSports School Main LodgeBusiness
1034TUnknownUnknownBusiness
1035TWoollys Adv SumWoolly's Adventure Summit - Tube and Coaster ParkBusiness
1036TUnbound 1Unbound Terrain Park 1Business
1037TUnbound 2Unbound Terrain Park 2 (Run Queue Channel)Business
1038TUnknownUnknownBusiness
1039TUnknownUnknownBusiness
1040TUnknownUnknownBusiness
1999TOps AnnounceOperations AnnouncementsBusiness
Mammoth Special Events
DEC Mode Alpha TagDescriptionTag
3001TEvents 1Events 1Business
3002TEvents 2Events 2Business
3003TEvents 3Events 3Business
3004TEvents 4Events 4Business
3005TEvents 5Events 5Business
3006TEvents 6Events 6Business
3007TEvents 7Events 7Business
3008TEvents 8Events 8Business
3009TEvents 9Events 9Business
3010TEvents 10Events 10Business
Mammoth Tamarack Lodge
DEC Mode Alpha TagDescriptionTag
4001TTL Front DeskTamarack Lodge Front Desk / HousekeepingBusiness
4002TTL GroomingTamarack Cross Country Ski Center Trail GroomingBusiness
4003TTL 3Tamarack Lodge 3Business
4006TTL 6Tamarack Lodge 6Business
4999TTL AnnounceTamarack Lodge Announcements (All Radios)Business
Mammoth Mountain Inn
DEC Mode Alpha TagDescriptionTag
5001TMMI Front DeskMammoth Mtn Inn Front DeskBusiness
5002TMMI HousekeepingMammoth Mtn Inn HousekeepingBusiness
5003TMMI BellmenMammoth Mtn Inn BellmenBusiness
5004TMMI 4Mammoth Mtn Inn 4Business
5999TMMI AnnounceMammoth Mtn Inn Announcements (All Radios)Business
Mammoth Juniper Lodge
DEC Mode Alpha TagDescriptionTag
6001TJL Front DeskJuniper Lodge Front DeskBusiness
6002TJL HouskeepingJuniper Lodge HousekeepingBusiness
6003TJL BellmenJuniper Lodge BellmenBusiness
6004TJL 4Juniper Lodge 4Business
6009TJL 9Juniper Lodge 9Business
6010TJL 10Juniper Lodge 10Business
6011TJL 11Juniper Lodge 11Business
6999TJL AnnounceJuniper Lodge Announcements (All Radios)Business
Outside Subscribers
DEC Mode Alpha TagDescriptionTag
9005TSki RentalSki Rental/Tuning DeliveryBusiness