Infinity Landing Airport Private
SD25 · Piedmont, SD · Non-towered · Print kneeboard
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-04 · night begins 08:47 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:11 AM | 11:11Z |
| Sunrise | 05:44 AM | 11:44Z |
| Sunset | 08:14 PM | 02:14Z |
| Evening civil twilight Loggable night begins | 08:47 PM | 02:47Z |
Plan a flight from SD25
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Advisories
NOTAMs
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Pilot reports
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Airspace hazards
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Runways
RWY 13LEFT traffic
- Heading
- 135° true
- Dimensions
- 5,000 × 50 ft
- TPA
- 4,200 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- CTAF
- 122.9
Enter the left downwind (heading 315°) on the 45° at 4,200 ft MSL (≈1,000 AGL).
More details — RWY 13
- Threshold elev
- 3,159 ft
- Markings
- basic
- TDZ elevation
- 3,159 ft
Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| 13/31 | 5,000 ft |
Prefer one flat page? Full runway details for SD25 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the SD25 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
RCA 108.80 · RAP 112.30
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| RCA · Ellsworth | TACAN | 108.80 · 25X | — | r299° / 8 NM |
| RAP · Rapid City | VORTAC | 112.30 · 70X | High | r312° / 17.8 NM |
Prefer one flat list? All SD25 frequencies →
Charts & procedures
No published instrument procedures or Chart Supplement for SD25 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- SD25
- Coordinates
- 44.2186, -103.2514
- Elevation
- 3,159 ft MSL
- Sectional chart
- TWIN CITIES
- Airport use
- Private
- Control tower
- No
- ARTCC
- DENVER (ZDV)
- Flight service (FSS)
- HURON · 122.2 · 1-800-WX-BRIEF
- Attendance
- UNATNDD
- Segmented circle
- No
- Activated
- 2023/11
- Distance from city
- 6 E
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 122.9 — confirm the click sequence in the Chart Supplement
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Ownership & management 2 contacts
Remarks FAA · 1 notes
General
- RWY 13/31 UNDER CONST.
Nearby airports
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Also nearby: 2SD0 Paradise Valley Airport (private) (10 NM) · 49B Sturgis Municipal Airport (13 NM) · 4SD4 Dan's Airport (private) (14 NM) · SD24 Eden Valley Airport (private) (15 NM)
About SD25
Infinity Landing Airport (SD25) is an airport in Piedmont, SD, at 3,159 ft MSL. It has 1 runway, the longest 5,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for SD25, refreshed from the Aviation Weather Center and FAA NASR.
Does SD25 have a control tower?
No. Infinity Landing Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at SD25?
Infinity Landing Airport has 1 runway; the longest is 5,000 ft. See the Runways section for headings, surface, and lighting.
Where is SD25?
Infinity Landing Airport is in Piedmont, SD, at an elevation of 3,159 ft MSL. Coordinates: 44.2186, -103.2514.
Fly out of SD25 often?
Save SD25 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.
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 SD25 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.