Airport information
- FAA LID
- H37
- Coordinates
- 40.1388, -120.1790
- Elevation
- 4,055 ft MSL
- Magnetic variation
- 16E
- Sectional chart
- KLAMATH FALLS
- Airport use
- Public
- Control tower
- No
- ARTCC
- OAKLAND (ZOA)
- Flight service (FSS)
- RENO
- NOTAM facility
- RNO
- Attendance
- UNATNDD
- Segmented circle
- Yes
- Wind indicator
- yes
- Activated
- 1964/10
- Distance from city
- 2 W
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 04:59 AM | 11:59Z |
| Sunrise | 05:31 AM | 12:31Z |
| Sunset | 08:33 PM | 03:33Z |
| Evening civil twilight Loggable night begins | 09:06 PM | 04:06Z |
Plan a flight from H37
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 in the live weather panel above.
Traffic pattern
- Landing
- Rwy 06 · 061°
- Pattern
- left (turns left)
- TPA
- 4,855 ft MSL · 800 AGL
- CTAF
- 122.9
Enter the left downwind for Rwy 06 at 4,855 ft MSL · 800 AGL on a 45°.
Runway 06/24
3,260 ft × 40 ft · Asphalt (Good)- Heading
- 061° mag · 77° true
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Pline, 40 ft, 1,125 ft from threshold, 0 ft B of centerline — 23:1 slope to clear
- Heading
- 241° mag · 257° true
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Pline, 40 ft, 800 ft from threshold, 0 ft B of centerline — 15:1 slope to clear · penetrates the 20:1 visual approach surface
| Runway | Length | Your margin |
|---|---|---|
| 06/24 | 3,260 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| CTAF | 122.9 |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| AHC · Amedee | VOR-DME | 109.00 | r172° / 7.8 NM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management
Remarks FAA
- +5FT BRUSH ALONG NORTHSIDE; 45 FT FROM RY CNTRLN.
- FOR CD CTC OAKLAND ARTCC AT 510-745-3380.
- LASSEN COUNTY DEPUTY DIRECTOR OF PUBLIC WORKS.
- LASSEN COUNTY PUBLIC WORKS OFFICE.
- PWR LINE MKD WITH AVN ORANGE SPHERICAL MARKERS.
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 H37 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 H37
Herlong Airport (H37) is an airport in Herlong, CA, at 4,055 ft MSL. It has 1 runway, the longest 3,260 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for H37, refreshed from the Aviation Weather Center and FAA NASR.
Does H37 have a control tower?
No. Herlong Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at H37?
Herlong Airport has 1 runway; the longest is 3,260 ft. See the Runways tab for headings, surface, and lighting.
Where is H37?
Herlong Airport is in Herlong, CA, at an elevation of 4,055 ft MSL. Coordinates: 40.1388, -120.1790.
Fly out of H37 often?
Save H37 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.