Airport information
- FAA LID
- M45
- Coordinates
- 38.7347, -119.7670
- Elevation
- 5,867 ft MSL
- Magnetic variation
- 16E
- Sectional chart
- SAN FRANCISCO
- 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
- 1968/01
- Distance from city
- 3 N
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 | 05:02 AM | 12:02Z |
| Sunrise | 05:34 AM | 12:34Z |
| Sunset | 08:27 PM | 03:27Z |
| Evening civil twilight Loggable night begins | 08:59 PM | 03:59Z |
Plan a flight from M45
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 17 · 168°
- Pattern
- left (turns left)
- TPA
- 6,667 ft MSL · 800 AGL
- CTAF
- 122.9
Enter the left downwind for Rwy 17 at 6,667 ft MSL · 800 AGL on a 45°.
Runway 17/35
4,443 ft × 50 ft · Asphalt (Poor)- Heading
- 168° mag · 184° true
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Hill, 150 ft, 3,200 ft from threshold, 425 ft L of centerline — 20:1 slope to clear
- Heading
- 348° mag · 4° true
- Markings
- basic
- Traffic pattern
- Right
| Runway | Length | Your margin |
|---|---|---|
| 17/35 | 4,443 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| CTAF | 122.9 |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| SWR · Squaw Valley | VOR-DME | 113.20 | r123° / 35.6 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
- THIS AIRPORT HAS BEEN SURVEYED BY THE NATIONAL GEODETIC SURVEY.
- LARGE STONES ALONG EDGE OF RWY OFF GRADED SFC.
- NO SNOW REMOVAL, ARPT CLOSED WHEN SNOW ON RUNWAY.
- TREES PENETRATING TRANSITIONAL SFCS E & W OF RY.
- SOIL CONDITIONS OFF RY IS POOR IN WET CONDITIONS. CALL PUBLIC WORKS FOR ADDITIONAL INFORMATION 530-694-2140 EXT."0".
- RY 17/35 LIMITED BY AIRPORT OPERATOR TO 4,800 LBS SINGLE WHEEL, 9,600 LBS DUAL WHEEL.
- FOR CD CTC OAKLAND ARTCC AT 510-745-3380.
- DIRECTOR OF COMMUNITY DEVELOPMENT
- X 425
- LOOSE GRVL ON RWY.
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 M45 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 M45
Alpine County Airport (M45) is an airport in Markleeville, CA, at 5,867 ft MSL. It has 1 runway, the longest 4,443 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for M45, refreshed from the Aviation Weather Center and FAA NASR.
Does M45 have a control tower?
No. Alpine County Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at M45?
Alpine County Airport has 1 runway; the longest is 4,443 ft. See the Runways tab for headings, surface, and lighting.
Where is M45?
Alpine County Airport is in Markleeville, CA, at an elevation of 5,867 ft MSL. Coordinates: 38.7347, -119.7670.
Fly out of M45 often?
Save M45 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.