Riverdale, North Dakota
37N Garrison Dam Recreational Airpark
Garrison Dam Recreational Airpark (37N) is a non-towered, public-use airport in Riverdale, North Dakota, at 1,723 ft MSL. Its runway is 11/29 (3,195 by 60 ft, turf and gravel). Right traffic for runway 11. CTAF 122.9.
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 37N
- Location
- Riverdale, North Dakota (Mc Lean County). 1 NM SW of the city center
- Elevation
- 1,723 ft MSL
- Position
- 47.4827° N, 101.4081° W
- Control tower
- No, non-towered
- Sectional chart
- Billings
- Magnetic variation
- 10° E (1985)
- Ownership
- Publicly owned, open to the public
- Attendance
- Unattended
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 11/29 | 3,195 × 60 ft | Turf and Gravel, fair condition | Not listed |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 11 | Right traffic | None listed | None listed | None listed | Not listed |
| 29 | Not stated | None listed | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.9
Before you go
Brief 37N in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Garrison Dam Recreational Airpark, 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.