Prairie Du Sac, Wisconsin
91C Sauk/Prairie
Sauk/Prairie (91C) is a non-towered, public-use airport in Prairie Du Sac, Wisconsin, at 832 ft MSL. Its runway is 18/36 (2,936 by 60 ft, asphalt). 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 91C
- Location
- Prairie Du Sac, Wisconsin (Sauk County). 2 NM W of the city center
- Elevation
- 832 ft MSL
- Position
- 43.2979° N, 89.7558° W
- Control tower
- No, non-towered
- Sectional chart
- Chicago
- Magnetic variation
- 0° E (1985)
- Fuel
- 100LL, UL94
- Ownership
- Privately owned, open to the public
- Attendance
- Unattended
1 runway
Runways
| Runway | Length × width | Surface | Edge lights |
|---|---|---|---|
| 18/36 | 2,936 × 60 ft | Asphalt, fair condition | Medium intensity |
Runway ends and traffic pattern
| End | Pattern | Glide slope lights | Instrument | Displaced threshold | Landing distance |
|---|---|---|---|---|---|
| 18 | Left traffic | 2-light PAPI, left | None listed | None listed | Not listed |
| 36 | Left traffic | 2-light PAPI, left | None listed | None listed | Not listed |
VHF
Frequencies
- CTAF
- 122.9
- Actvt Mirl Ry 18/36, Reil Rys 18 & 36, & Papi Rys 18 & 36 - Ctaf.
- Approach / departure
- 135.45
- "Madison"
Before you go
Brief 91C in Ascent EFB.
Current weather, NOTAMs and the airport diagram for Sauk/Prairie, 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.