Alta Sierra Airport Private
09CL · Grass Valley, CA · 2,275 ft elevation · var 16E · Non-towered
Airport information
- FAA LID
- 09CL
- Coordinates
- 39.1138, -121.0570
- Elevation
- 2,275 ft MSL
- Magnetic variation
- 16E
- Sectional chart
- SAN FRANCISCO
- Airport use
- Private
- Control tower
- No
- ARTCC
- OAKLAND (ZOA)
- Flight service (FSS)
- RANCHO MURIETA
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Distance from city
- 6 S
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 | 05:06 AM | 12:06Z |
| Sunrise | 05:38 AM | 12:38Z |
| Sunset | 08:34 PM | 03:34Z |
| Evening civil twilight Loggable night begins | 09:06 PM | 04:06Z |
Plan a flight from 09CL
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 01 · 010°
- Pattern
- left (turns left)
- TPA
- 3,075 ft MSL · 800 AGL
- CTAF
- 122.9
Enter the left downwind for Rwy 01 at 3,075 ft MSL · 800 AGL on a 45°.
Runway 01/19
2,834 ft × 50 ft · Asphalt (Fair)- Heading
- 010° mag · 26° true
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Trees, 20 ft, 200 ft from threshold, 70 ft R of centerline
- Heading
- n/a
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Trees, 20 ft, 200 ft from threshold, 40 ft L of centerline
| Runway | Length | Your margin |
|---|---|---|
| 01/19 | 2,834 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| CTAF | 122.9 |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| BAB · Beale | TACAN | 108.60 | r078° / 17.9 NM |
| MYV · Marysville | VOR-DME | 110.80 | r072° / 24.1 NM |
| HNW · Hangtown | VOR-DME | 115.50 | r311° / 27.4 NM |
| MCC · Mc Clellan | VOR-DME | 109.20 | r014° / 31.3 NM |
| SWR · Squaw Valley | VOR-DME | 113.20 | r248° / 36.9 NM |
VFR sectional
No published instrument procedures or Chart Supplement for 09CL. VFR sectional link above.
Services
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management
Remarks FAA
- PRIVATE USE, VFR ONLY.
- ACFT TIEDOWN IN PRIM SFC EAST OF RY 01/19 60 FT FM CNTRLN.
- PART 77 VIOL: TREES & TERRAIN EAST & WEST OF RWY PENETRATE 7:1 SLOPE.
- WIND PERMITTING LAND ON RWY 01; TAKEOFF ON ON RWY 19 DUE TO EXCESSIVE GRADIENT.
- HANGARS 125 FT WEST OF RWY CENTERLINE.
- LANDING RWY 19 PROHIBITED.
- THE NEIGHBORHOOD SURROUNDING THE AIRPORT IS NOISE SENSITIVE. ARRIVING AIRCRAFT SHOULD FLY ONLY THE RECOMMENDED LEFT-HAND TRAFFIC PATTERN FOR RUNWAY 1. ENTER THE PATTERN FROM EITHER AN UPWIND LEG OR DIRECTLY FROM OVERHEAD. AVOID LOW PASSES.
- RY 19 IS USED FOR DEP ONLY. USE A STANDARD LEFT TURN OUT. PRIOR PERMISSION AND A BRIEFING FROM AN OWNER OR DIRECTOR IS REQUIRED BEFORE LANDING.
- FOR CD CTC NORCAL APCH AT 916-361-6874.
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 09CL 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 09CL
Alta Sierra Airport (09CL) is an airport in Grass Valley, CA, at 2,275 ft MSL. It has 1 runway, the longest 2,834 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 09CL, refreshed from the Aviation Weather Center and FAA NASR.
Does 09CL have a control tower?
No. Alta Sierra Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 09CL?
Alta Sierra Airport has 1 runway; the longest is 2,834 ft. See the Runways tab for headings, surface, and lighting.
Where is 09CL?
Alta Sierra Airport is in Grass Valley, CA, at an elevation of 2,275 ft MSL. Coordinates: 39.1138, -121.0570.
Fly out of 09CL often?
Save 09CL 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.