Herlong
H37 · Herlong, CA · Non-towered · Print kneeboard · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-18 · night begins 07:32 PM
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:17 AM | 13:17Z |
| Sunrise | 06:44 AM | 13:44Z |
| Sunset | 07:05 PM | 02:05Z |
| Evening civil twilight Loggable night begins | 07:32 PM | 02:32Z |
Plan a flight from H37
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
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Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
RWY 24LEFT traffic
- Heading
- 243° mag · 259° true
- Dimensions
- 3,260 × 40 ft
- TPA
- 4,862 ft MSL · 800 AGL · charted
- Surface
- Asphalt
- CTAF
- 122.9
Enter the left downwind (heading 063°) on the 45° at 4,862 ft MSL.
More details — RWY 24
- Threshold elev
- 4,062 ft
- Markings
- basic
- 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
Pattern side: FAA NASR · TPA charted (NASR) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 06/24 | 3,260 ft |
Prefer one flat page? Full runway details for H37 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the H37 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
AHC 109.00
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| AHC · Amedee | VOR/DME | 109.00 · 27X | Terminal | r172° / 7.9 NM |
Prefer one flat list? All H37 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- H37
- Coordinates
- 40.1387, -120.1800
- Elevation
- 4,062 ft MSL
- Magnetic variation
- 16E
- Sectional chart
- KLAMATH FALLS
- Airport use
- Public
- Control tower
- No
- ARTCC
- OAKLAND (ZOA)
- Flight service (FSS)
- RENO · 1-800-WX-BRIEF
- NOTAM facility
- RNO
- Attendance
- UNATNDD
- Segmented circle
- Yes
- Wind indicator
- yes
- Activated
- 1964/10
- Distance from city
- 2 W
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.
Services fuel · repairs · oxygen · attendance
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management 2 contacts
Remarks FAA · 5 notes
General
- +5FT BRUSH ALONG NORTHSIDE; 45 FT FROM RY CNTRLN.
- FOR CD CTC OAKLAND ARTCC AT 510-745-3380.
Obstructions
- PWR LINE MKD WITH AVN ORANGE SPHERICAL MARKERS.
Contact
- LASSEN COUNTY DEPUTY DIRECTOR OF PUBLIC WORKS.
- LASSEN COUNTY PUBLIC WORKS OFFICE.
Nearby airports
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Also nearby: CA11 Bodad (private) (9 NM) · O02 Nervino (21 NM) · NV09 H Bar H (private) (28 NM) · 77NV Flying Eagle (private) (29 NM)
About H37
Herlong (H37) is an airport in Herlong, CA, at 4,062 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 is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at H37?
Herlong has 1 runway; the longest is 3,260 ft. See the Runways section for headings, surface, and lighting.
Where is H37?
Herlong is in Herlong, CA, at an elevation of 4,062 ft MSL. Coordinates: 40.1387, -120.1800.
More about H37
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.
Something here wrong or out of date? Report a data problem.