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Department of Natural Resources (MD)

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Natural Resources Police

Central Dispatch Center is at the Tawes State Office Building in Annapolis, all units refer or identify to this on the radio as Tawes.

Eastern Region Area One (1) Johnson Office - Wicommico County Units Identify as 1XX Area Covered: Wicomico, Worcester, Somerset and Ocean City

Eastern Region Area Two (2) Hillsboro Office - Talbot County Units Identify as 2XX Area Covered: Kent, Queen Annes, Talbot, Caroline & Dorchester

Southern Region Area Three (3) City Dock Officer - Anne Arundel Units Identify as 3XX Area Covered: Anne Arundel and Prince Georges

Southern Region Area Four (4) Waldorf Office - Charles County Units Identify as 4XX Area Covered: Calvert, Charles and St. Mary's

Central Region Area Five (5) Gwynbrook Office - Baltimore County Units Identify as 5XX Area Covered: Baltimore, Carroll, Howard, Montgomery and Baltimore City

Central Region Area Six (6) Gwynnbrook Office - Baltimore County Units Identify as 6XX Area Covered: Harford and Cecil

Western Region Area Seven (7) Echo Lake Office - Frederick County Units Identify as 7XX Area Covered: Frederick and Washington

Western Region Area Eight (8) Town Hill Office - Allegany County Units Identify as 8XX Area Covered: Allegany and Garrett

NRP Aviation - Talbot County - Disbanded due to state budget cuts Area Covered: Statewide

NRP Special Operation Divison - Queen Anne's County Area Covered: Statewide

Forest/Park Service Unit IDs

  • 6-xx - (Greenridge?)
  • 7-xx - Fort Frederick State Park
  • 8-xx - Cunningham Falls State Park
  • 9-xx - Fair Hill NRMA (also uses 90)
  • 13-xx - Patapsco State Park
  • 20-xx - Assateague (Island) State Park
  • 22-xx - Smallwood State Park
  • 25-xx - St. Mary's Lake Recreational Area
  • 28-xx - (Eastern Shore?)
  • 29-xx - Tuckahoe State Park (Martin Neck/Wye Mills?)
  • 35-xx - Elk Neck State Park
  • 36-xx - Rocks State Park/Susquehanna State Park
  • 37-xx - (Harford County?)
  • 41-xx - Gunpowder Falls State Park/Northpoint State Park
  • 45-xx - (Central District?)
  • 90-xx - Fair Hill Natural Resources Management Area
  • Central xx - Central District Forest Rangers

Location Callsigns

  • Tawes - Tawes Statewide Communications Office Dispatcher
  • Rocks - Rocks State Park Office
  • Gwynbrook - Gwynbrook Office; Natural Resources Police
  • Gambrills - Gambrills State Park Office
  • Town Hill - Town Hill Office; Natural Resources Police
  • Long Hill - Long Hill Communications Office Dispatcher
  • Northpoint - Nrthpoint State Park Office
  • Monkton - Monkton Ranger Station; Gunpowder Falls State Park
  • Susquehanna - Susquehanna State Park Office
  • Madonna - Madonna Forest Service Station

Natural Resources Police Unit IDs

  • 2x-xx - Eastern Region Area 2
  • 3x-xx - Central Region Area 5 (or 3-xx)
  • 5x-xx - Western Region Area 6

Unlisted Frequencies

These may be new frequencies for which the correct radio bandplan is currently not known. Please add them as you find them.

  • 159.315 unk PL/DCS Many mentions of DNR; '300' units suggesting AA county area, but heard in Bowie <ka3jjz>
  • 151.505 DCS365 '351' <bear105>


  • Confirming the following data for the Western Maryland area from the FCC and from monitoring: <Gilligan>
Confirmed?    Freq      Tone     Description           FCC License Rtpr Site
--------------------------------------------------------------------------------
            151.3175   ___ DPL   DNR Cumberland        Warrior Mountain
    YES     154.2575   351 DPL   DNR Thurmont          Cunningham Falls SP
    YES     155.3250   351 DPL   DNR Hancock           Sideling Hill Mountain
            155.3625   351 DPL   DNR Frederick         Gambrill Forest
            155.3700   ___ DPL   DNR Frederick         Gambrill Mountain
    YES     155.5950   351 DPL   DNR Clear Spring      Fairview Mountain
    YES     155.8575   351 DPL   DNR Hagerstown        SHA Tower (Sharpsburg)
            155.9325   ___ DPL   DNR Cumberland        Warrior Mountain

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