Forsyth, Montana
1S3 Tillitt Fld
Tillitt Fld (1S3) is a non-towered, public-use airport in Forsyth, Montana, at 2,729.3 ft MSL. Its runway is 09/27 (4,799 by 75 ft, asphalt). CTAF 122.8.
FAA NASR data effective Oct 29, 2026. Not for navigation; verify with current FAA charts and the Chart Supplement.
Airport
At a glance
- Identifiers
- FAA 1S3
- Location
- Forsyth, Montana (Rosebud County). 3 NM E of the city center
- Elevation
- 2,729.3 ft MSL
- Position
- 46.2712° N, 106.6239° W
- Control tower
- No, non-towered
- Sectional chart
- Billings
- Magnetic variation
- 9° E (2020)
- Fuel
- 100LL
- Ownership
- Publicly owned, open to the public
- Attendance
- Irregular
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 09/27 | 4,799 × 75 ft | Asphalt, good condition | Medium intensity |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 09 | Left traffic | 2-light PAPI, left | None listed | None listed | Not listed |
| 27 | Left traffic | 2-light PAPI, left | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.8
- Mirl Ry 09/27 Opers Dusk-2200; Aft 2200 Actvt - Ctaf. Actvt Papi Rys 09 & 27 - Ctaf.
- UNICOM
- 122.8
Weather station
- AWOS-3PT 1S3
- 121.125
Before you go
Brief 1S3 in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Tillitt Fld, in the app on iPhone and iPad.
Not for navigation. Verify with current FAA charts and the Chart Supplement before flight.
Source: FAA NASR 28-day subscription, cycle effective Oct 29, 2026. Airport data changes every 28 days and NOTAMs can override it at any time.