GTF VORTAC: Great Falls, MT · 115.10

The Great Falls VORTAC (GTF) transmits on 115.10 MHz, TACAN/DME channel 98X, from 3,672 ft MSL in Great Falls, Montana. From the FAA’s NASR data (cycle 2026-09-03); check the current Chart Supplement and NOTAMs before you rely on it.

Station

Frequency115.10 MHz

TACAN/DME Channel98X

TypeVORTAC

StatusRestrictedSee FAA Remarks

Elevation3,672 ft MSL

Magnetic Variation16°E1990 Epoch

Hours24 Hours

ARTCCSalt Lake City

Service Volume: VOR High (VH)

Where the FAA protects this VOR’s signal off published routes (AIM 1-1-8). Heights are above the transmitter, not MSL. Published routes and procedures can use a VOR beyond these limits, and the remarks below can narrow them.

1,000 ft to 5,000 ft ATH40 NM

5,000 ft to 14,500 ft ATH70 NM

14,500 ft to 60,000 ft ATH100 NM

18,000 ft to 45,000 ft ATH130 NM

FAA Remarks

VOR UNUSBL 060-171 BYD 40 NM; 072-084 BYD 40 NM BLW 18000 FT; 092-111 BYD 40 NM BLW 13000 FT; 092-111 BYD 71 NM; 112-119 BYD 40 NM BLW 18000 FT; 120-147 BYD 40 NM.

Verbatim from NASR. Radials are magnetic, from the station. UNUSBL = Unusable · BYD = Beyond · BLW = Below.

VOR Receiver Checkpoints

For the 30-day VOR check under 14 CFR 91.171: within 4° at a ground checkpoint, 6° at an airborne one.

Ground · R-030GTF2.3 NM ON TWY A, BETWEEN A5 AND A6

Ground · R-030GTF2.9 NM AT INTERSECTION OF TWY A/A3.

Public Airports Within 40 NM

Each field’s radial and distance from GTF, using the station’s own 16°E alignment.

KGTF Great Falls International AirportGreat FallsR-025 · 2.5 NM 5U5 Fairfield AirportFairfieldR-279 · 25 NM 5U1 Dutton AirportDuttonR-318 · 27 NM KCII Choteau AirportChoteauR-291 · 38 NM 3U5 Augusta AirportAugustaR-256 · 39 NM 79S Fort Benton AirportFort BentonR-037 · 39 NM

Nearby VORs

HLN HelenaVORTAC · 117.70 · R-188 · 55 NM CTB Cut BankVOR/DME · 113.35 · R-315 · 77 NM LWT LewistownVOR/DME · 115.45 · R-091 · 77 NM HVR HavreVOR/DME · 114.65 · R-029 · 93 NM HIA WhitehallVOR/DME · 113.70 · R-182 · 100 NM BZN BozemanVOR/DME · 112.40 · R-158 · 101 NM

More VORs in Montana, or plan a route through GTF in the Route Planner.

GTF VORTAC · Great Falls