1
Runway
1
Frequency
0
Procedures
0
NOTAMs
Quick Facts
ICAO
09CL
FAA
09CL
Elevation
2,279.5 ft MSL
Runways
1
Frequencies
1
Tower
No
Fuel
N/A
Coordinates
39.112, -121.055
Airport Information
Facility Type
AIRPORT
Elevation
2,279.5 ft MSL
Control Tower
No
Fuel Types
None listed
Traffic Pattern
800 ft MSL
ARTCC
OAKLAND
Coordinates
39.1121, -121.0552
Ownership
Private
Hours of Operation
Current Weather
METAR KGOO 272155Z AUTO 00000KT 10SM FEW037 SCT045 18/08 A3000 RMK A01
Flight Category
VFR
Wind
0° at 0 kt
Visibility
10+ SM
Temperature
18°C
Dewpoint
8°C
Altimeter
1016.00 inHg
Cloud Cover
SCT
Nearest weather from KGOO (7 NM away)
Observed 2026-06-27 21:55Z
Nearby Weather Cameras
No camera at 09CL. Showing nearest cameras.
Stoney Ridge
West · Camera 3 · 4 cameras total
12 NM away
Siller Bros Tower
NorthWest · Camera 4 · 4 cameras total
21 NM away
12 camera angles available
See all cameras, directions, and nearby airport cameras
Sign up free to view all cameras →Runways
| ID | Length | Width | Surface | Lights |
|---|---|---|---|---|
| 01/19 | 2,834 ft | 50 ft | ASPH | - |
Frequencies
| Type | Frequency | Name |
|---|---|---|
| CTAF | 122.9 | CTAF |
Active NOTAMs
No active NOTAMs for 09CL.
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09CL Operational Overview
Location & Facility
ALTA SIERRA (09CL) is a privately owned airport restricted to private use located in GRASS VALLEY, California, United States. The field sits at an elevation of 2,279.5 feet above mean sea level (MSL) at coordinates 39.1121°N, 121.0552°W.
Runways
ALTA SIERRA has 1 runway. The longest runway (01/19) measures 2,834 feet by 50 feet with a asph surface.
Communications & Operations
ALTA SIERRA is a non-towered (pilot-controlled) field. A total of 1 communication frequencies are published for this facility.
Weather Cameras
3 FAA Weather Cameras are available near ALTA SIERRA, providing real-time visual weather conditions updated every 10 minutes. AeroCopilot integrates these cameras with AI-powered weather analysis to help pilots assess visibility and ceiling conditions before departure.
Current Conditions
The current flight category at ALTA SIERRA is VFR (Visual Flight Rules — good flying conditions). Weather conditions are updated in real-time from official NOAA Aviation Weather Center observations.
Frequently Asked Questions
What is 09CL?
09CL is the ICAO identifier for ALTA SIERRA, a public-use airport located in GRASS VALLEY, California, United States.
How many runways does ALTA SIERRA have?
ALTA SIERRA (09CL) has 1 runway. See the runway table above for dimensions and surface types.
What is the elevation of 09CL?
The field elevation of ALTA SIERRA is 2,279.5 feet above mean sea level (MSL).
Is fuel available at 09CL?
No fuel types are currently listed for ALTA SIERRA. Contact the FBO directly for availability.
What are the current weather conditions at 09CL?
The current flight category at ALTA SIERRA is VFR. See the METAR section above for full decoded weather data including wind, visibility, temperature, and altimeter.
Are there active NOTAMs at 09CL?
There are currently no active NOTAMs for ALTA SIERRA.
How do I access complete data for 09CL?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for ALTA SIERRA.
Where is ALTA SIERRA located?
ALTA SIERRA (09CL) is located in GRASS VALLEY, California, United States, at an elevation of 2,279.5 ft MSL.
Does 09CL have weather cameras?
09CL does not have a direct weather camera, but there are nearby cameras within range. Sign up for AeroCopilot to view all nearby airport cameras.