Airport information
- FAA LID
- 1IS4
- Coordinates
- 42.1348, -89.8242
- Elevation
- 916 ft MSL
Detailed FAA facility data isn't available for this airport.
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:49 AM | 09:49Z |
| Sunrise | 05:23 AM | 10:23Z |
| Sunset | 08:39 PM | 01:39Z |
| Evening civil twilight Loggable night begins | 09:13 PM | 02:13Z |
Plan a flight from 1IS4
Traffic pattern
- Landing
- Rwy 09
- Pattern
- left (turns left)
- TPA
- 1,900 ft MSL (≈1,000 AGL)
Enter the left downwind for Rwy 09 at 1,900 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 09/27
2,000 ft × 70 ft · TURF- Heading
- n/a
- Heading
- n/a
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| 09/27 | 2,000 ft |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| PLL · Polo | VOR-DME | 111.20 | r304° / 16.8 NM |
| RFD · Rockford | VOR-DME | 110.80 | r258° / 28.3 NM |
| CVA · Davenport | VORTAC | 113.80 | r045° / 39 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 1IS4. VFR sectional link above.
No published services or facility detail for 1IS4.
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 1IS4 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 1IS4
Swan Valley Farm Airport (1IS4) is an airport in Lanark, IL, at 916 ft MSL. It has 1 runway, the longest 2,000 ft. This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 1IS4, refreshed from the Aviation Weather Center and FAA NASR.
What is the longest runway at 1IS4?
Swan Valley Farm Airport has 1 runway; the longest is 2,000 ft. See the Runways tab for headings, surface, and lighting.
Where is 1IS4?
Swan Valley Farm Airport is in Lanark, IL, at an elevation of 916 ft MSL. Coordinates: 42.1348, -89.8242.
Fly out of 1IS4 often?
Save 1IS4 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.