Nicolaisen Airport Private
2SD4 · Mount Vernon, SD · 1,440 ft elevation · var 7E · Non-towered
Airport information
- FAA LID
- 2SD4
- Coordinates
- 43.6825, -98.2661
- Elevation
- 1,440 ft MSL
- Magnetic variation
- 7E
- Sectional chart
- OMAHA
- Airport use
- Private
- Control tower
- No
- ARTCC
- MINNEAPOLIS (ZMP)
- Flight service (FSS)
- HURON
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 1998/06
- Distance from city
- 2 S
Weather
METAR observed
Loading current weather…
TAF forecast
Loading forecast…
Sun & FAA night 2026-06-21
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:15 AM | 10:15Z |
| Sunrise | 05:51 AM | 10:51Z |
| Sunset | 09:18 PM | 02:18Z |
| Evening civil twilight Loggable night begins | 09:54 PM | 02:54Z |
Plan a flight from 2SD4
Traffic pattern
- Landing
- Rwy N
- Pattern
- left (turns left)
- TPA
- 2,400 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy N at 2,400 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway N/S
2,800 ft × 50 ft · Turf- Heading
- n/a
- Traffic pattern
- Left
- Heading
- n/a
- Traffic pattern
- Left
| Runway | Length | Your margin |
|---|---|---|
| N/S | 2,800 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| MHE · Mitchell | VOR-DME | 109.20 | r233° / 11.4 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 2SD4. VFR sectional link above.
Ownership & management
Remarks FAA
- FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 2SD4 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About 2SD4
Nicolaisen Airport (2SD4) is an airport in Mount Vernon, SD, at 1,440 ft MSL. It has 1 runway, the longest 2,800 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 2SD4, refreshed from the Aviation Weather Center and FAA NASR.
Does 2SD4 have a control tower?
No. Nicolaisen Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 2SD4?
Nicolaisen Airport has 1 runway; the longest is 2,800 ft. See the Runways tab for headings, surface, and lighting.
Where is 2SD4?
Nicolaisen Airport is in Mount Vernon, SD, at an elevation of 1,440 ft MSL. Coordinates: 43.6825, -98.2661.
Fly out of 2SD4 often?
Save 2SD4 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.