Tri-County Regional Airport
LNR · KLNR · Spring Green, WI · 717 ft elevation · var 0E · Non-towered
Airport information
- ICAO / IATA
- KLNR / LNR
- Coordinates
- 43.2099, -90.1813
- Elevation
- 717 ft MSL
- Magnetic variation
- 0E
- Sectional chart
- CHICAGO
- Airport use
- Public
- Control tower
- No
- ARTCC
- CHICAGO (ZAU)
- Flight service (FSS)
- GREEN BAY
- NOTAM facility
- LNR
- Attendance
- MON-FRI 0800-1700
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- yes
- Activated
- 1943/11
- Distance from city
- 2 N
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 | 04:45 AM | 09:45Z |
| Sunrise | 05:21 AM | 10:21Z |
| Sunset | 08:44 PM | 01:44Z |
| Evening civil twilight Loggable night begins | 09:20 PM | 02:20Z |
Plan a flight from KLNR
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- MIRL RWY 09/27 PRESET TO LOW SS-SR; TO INCR INTST & ACTVT REIL 09 & 27; MIRL RWY 09/27; MIRL RWY 18/36 - CTAF. PAPI RWY 09 & 27 OPR CONSLY. on 123.0 — Chart Supplement ↗
Runway lighting aids — 09: 2-light PAPI (left) · 27: 2-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 09 · 089°
- Pattern
- left (turns left)
- TPA
- 1,700 ft MSL (≈1,000 AGL)
- CTAF
- 123.0
Enter the left downwind for Rwy 09 at 1,700 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 09/27
5,000 ft × 75 ft · Asphalt (Excellent)- Heading
- 089° mag · 89° true
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (3°)
- Traffic pattern
- Left
- Approach obstacle
- Ant, 34 ft, 1,070 ft from threshold, 265 ft L of centerline — 25:1 slope to clear
- Heading
- 269° mag · 269° true
- Markings
- nonprecision
- VGSI
- 2-light PAPI (left) (4°)
- Instrument landing
- LOC/DME · LOC 108.35 (LNR)
- Traffic pattern
- Left
- Approach obstacle
- Trees, 300 ft, 7,275 ft from threshold, 1260 ft R of centerline — 23:1 slope to clear
Runway 18/36
1,850 ft × 60 ft · Asphalt (Good)- Heading
- 180° mag · 180° true
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Trees, 375 ft, 5,000 ft from threshold, 530 ft R of centerline — 12:1 slope to clear · penetrates the 20:1 visual approach surface
- Heading
- 000° mag · 360° true
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Road, 15 ft, 380 ft from threshold, 0 ft L/R of centerline — 12:1 slope to clear · penetrates the 20:1 visual approach surface
| Runway | Length | Your margin |
|---|---|---|
| 09/27 | 5,000 ft | |
| 18/36 | 1,850 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| A/D | 135.45 | MADISON APP/DEP |
| ASOS | 119.425 | |
| RDO | 122.35 | GREEN BAY RDO |
| UNIC | 123 | CTAF/UNICOM |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| LNR · Lone Rock | VOR-DME | 112.80 | r203° / 5.5 NM |
| DLL · Dells | VORTAC | 117.00 | r219° / 27.4 NM |
| MSN · Madison | VORTAC | 108.60 | r273° / 37.1 NM |
Procedures at a glance
Approaches3
Minimums & Hot Spots
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100LL, Jet A (additive)
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- MAJOR
- Powerplant service
- MINOR
- Parking
- tiedowns
Ownership & management
Remarks FAA
- FOR CD CTC MADISON APP/DEP CON AT 608-249-8240. WHEN MADISON APCH CLSD, FOR CD CTC CHICAGO ARTCC AT 630-906-8921.
- COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -31C.
- MIRL RWY 09/27 PRESET TO LOW SS-SR; TO INCR INTST & ACTVT REIL 09 & 27; MIRL RWY 09/27; MIRL RWY 18/36 - CTAF. PAPI RWY 09 & 27 OPR CONSLY.
- EMAIL ADDRESS: MARKHIGGSTCA@YAHOO.COM (ALL LOWER CASE)
- SELF SVC FUEL AVBL H24 VIA CREDIT CARD.
- OPERS CONSLY.
- OPERS CONSLY.
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 KLNR 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 KLNR
Tri-County Regional Airport (LNR · KLNR) is an airport in Spring Green, WI, at 717 ft MSL. It has 2 runways, 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 KLNR, refreshed from the Aviation Weather Center and FAA NASR.
Does KLNR have a control tower?
No. Tri-County Regional Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at KLNR?
Tri-County Regional Airport has 2 runways; the longest is 5,000 ft. See the Runways tab for headings, surface, and lighting.
Where is KLNR?
Tri-County Regional Airport is in Spring Green, WI, at an elevation of 717 ft MSL. Coordinates: 43.2099, -90.1813.
Fly out of KLNR often?
Save KLNR 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.