1
Runway
0
Frequencies
0
Procedures
Quick Facts
FAA
20CL
Elevation
1,410 ft MSL
Runways
1
Frequencies
0
Tower
No
Fuel
N/A
Coordinates
38.749, -122.367
Airport Information
Facility Type
AIRPORT
Elevation
1,410 ft MSL
Control Tower
No
Fuel Types
None listed
Traffic Pattern
Not published
ARTCC
OAKLAND
Coordinates
38.7493, -122.3675
Ownership
Private
Hours of Operation
Current Weather
Advisory only — not an official or legal weather briefing. The pilot in command is the final authority (14 CFR 91.3).
Nearby Weather Cameras
No camera at 20CL. Showing nearest cameras.
Situational awareness only — not for regulatory minimums
FAA aviation weather camera images are for situational awareness. They may NOT be used to comply with regulatory requirements — for example, to determine weather minimums for IFR flight. Images are generally updated about every 10 minutes and actual site conditions may differ from the displayed image. FAA Order JO 7110.10, §8-3-3
Angwin
East · Camera 2 · 4 cameras total
11 NM away
Deer Park
South · Camera 2 · 4 cameras total
14 NM away
12 camera angles available
See all cameras, directions, and nearby airport cameras
Sign up free to view all cameras →Runways
| ID | Ends | Length | Width | Surface | Lights | Weight Bearing | PCN |
|---|---|---|---|---|---|---|---|
| 14/32 | 14 / 32 | 3,500 ft | 30 ft | GRVL | - | - | - |
Airport Remarks
- FORM 7480-1 SUBMITTED FOR RECORDS.
- HAZARDOUS STRIP-SURROUNDED BY HILLS, 95 FT FENCE TO FENCE.
- FOR CD CTC OAKLAND ARTCC AT 510-745-3380.
Nearby airports & facilities
20CL
Mysterious Valley Airport
Pope Valley — <1 nm
05CL
POPE VALLEY
POPE VALLEY — 8 nm
05CL
Pope Valley Airport
Pope Valley — 8 nm
2O3
ANGWIN-PARRETT FLD
ANGWIN — 11 nm
K2O3
ANGWIN-PARRETT FLD
ANGWIN — 11 nm
63CL
G3 RANCH
CAPAY — 11 nm
63CL
G3 RANCH
CAPAY — 11 nm
10CN
ADVENTIST HEALTH ST HELENA
ST HELENA — 13 nm
10CN
ADVENTIST HEALTH ST HELENA
ST HELENA — 13 nm
E20
Lake Berryessa Seaplane Base
Napa — 14 nm
CL39
NAPA COUNTY FIRE DEPT
ST HELENA — 14 nm
CL39
NAPA COUNTY FIRE DEPT
ST HELENA — 14 nm
Nearest airports
- 20CL — Mysterious Valley Airport
Pope Valley
- 05CL — POPE VALLEY
POPE VALLEY
- 05CL — Pope Valley Airport
Pope Valley
- 2O3 — ANGWIN-PARRETT FLD
ANGWIN
- K2O3 — ANGWIN-PARRETT FLD
ANGWIN
California airports
20CL Operational Overview
Location & Facility
MYSTERIOUS VALLEY (20CL) is a privately owned airport restricted to private use located in POPE VALLEY, California, United States. The field sits at an elevation of 1,410 feet above mean sea level (MSL) at coordinates 38.7493°N, 122.3675°W.
Runways
MYSTERIOUS VALLEY has 1 runway. The longest runway (14/32) measures 3,500 feet by 30 feet with a grvl surface.
Communications & Operations
MYSTERIOUS VALLEY is a non-towered (pilot-controlled) field.
Weather Cameras
3 FAA Weather Cameras are available near MYSTERIOUS VALLEY, 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.
Frequently Asked Questions
What is 20CL?
20CL is the FAA location identifier for MYSTERIOUS VALLEY, a private-use airport — permission from the owner is required before landing, located in POPE VALLEY, California, United States.
How many runways does MYSTERIOUS VALLEY have?
MYSTERIOUS VALLEY (20CL) has 1 runway. See the runway table above for dimensions and surface types.
What is the elevation of 20CL?
The field elevation of MYSTERIOUS VALLEY is 1,410 feet above mean sea level (MSL). The FAA publishes this figure as ESTIMATED, not surveyed — use the current Chart Supplement for a survey-grade elevation.
Is fuel available at 20CL?
No fuel types are currently listed for MYSTERIOUS VALLEY. Contact the FBO directly for availability.
What is the longest runway at 20CL?
The longest runway at MYSTERIOUS VALLEY is 3,500 feet long.
How do I access complete data for 20CL?
Sign up for a free AeroCopilot account to access all frequencies, full NOTAM text with AI interpretation, decoded forecasts, and IFR procedure charts for MYSTERIOUS VALLEY.
Where is MYSTERIOUS VALLEY located?
MYSTERIOUS VALLEY (20CL) is located in POPE VALLEY, California, United States, at an elevation of 1,410 ft MSL.
Does 20CL have weather cameras?
20CL does not have a direct weather camera, but there are nearby cameras within range. Sign up for AeroCopilot to view all nearby airport cameras.