Mysterious Valley Airport

US Flag

Location

Latitude: 
 38-44-57.6490N (38.749347)
Longitude: 
 122-22-02.9220W (-122.367478)
Elevation: 
 1410.0 feet MSL (430 m MSL)
Magnetic Variation: 
 13.1 E (as of December 2025 from WMM2020 model)
Time Zone: 
 UTC -8.0 (Standard Time)
UTC -7.0 (Daylight Savings Time)
From City: 
 09 N.M. N of Pope Valley, California
Found On: 
 San Francisco Chart
FAA Region: 
 AWP

Contacts

Manager: 
Privately owned: 



PERRY CLARK
AMIZETTA WINERY 1099 GREENFIELD RD
ST HELENA, CA 94574

Operations

Airport Status: 
 Operational
Facility Use: 
 Private
Type: 
 Airport
Activation Date: 
 05/1971
Control tower: 
 No
Attendance (Months/Days/Hours): 
 Months/Days/Hours
IREG
Boundary ARTCC: 
 ZOA (Oakland)
Responsible ARTCC: 
 ZOA (Oakland)
Segmented Circle Indicator: 
 No
Traffic Pattern Altitude (MSL): 
 2410 feet (735 m)
NOTAM-D Service: 
 No
Military Landing Rights: 
 No
Civil/Military Joint Use: 
 No

Based Aircraft

Annual Operations (as of )

Communications

       

    Fixed Based Operators (FBOs) & Fuel

    (Click on a business for detail)
    Please help us keep this information up to date. This is a FREE SERVICE just like everything else on Airport Guide! If you see that a business needs to be added, modified, or deleted please fill out our
    .

    Area Code: 925
    Business Name Frequency Phone Fuel Grade
    To add, modify, or delete a business
    .

    Flight Service Stations

    Primary Alternate
    FSS on Field:  N
    FSS Name (ID):  Oakland(OAK)
    Frequency: 
    Toll Free Phone:  1-800-WX-BRIEF

    Instrument Procedures / Charts

    Terminal Procedures are only available for airports in several countries with more being added all the time. If you are looking for a specific country's charts, please send an email to support(at)airportguide.com stating the country name. This will be used to prioritize the implementation.

    Navigation Aids (Navaids) near 20CL

    Navigational Aid (NAVAID) distances from the airport are listed in Nautical Miles (NM).

    Nearby Airports with Fuel

    Dist (NM) Name (Airport IDs) True Hdg Mag Hdg Fuel Grade
    10.6 Angwin-Parrett Field Airport
    (2O3)    		 197 184 100LL
    23.6 Watts-Woodland Airport
    (O41)    		 100 87 100LL
    25.3 Charles M Schulz/Sonoma County Airport
    (STS KSTS STS)    		 235 222 100LL, Jet A-1
    25.5 Healdsburg Municipal Airport
    (KHES HES)    		 257 244 100LL
    26.0 Yolo County Airport
    (KDWA DWA)    		 112 99 100LL, Jet A, Jet A+
    28.8 Lampson Field Airport
    (1O2)    		 300 287 100LL
    29.3 Cloverdale Municipal Airport
    (O60)    		 273 260 100LL
    29.3 Nut Tree Airport
    (VCB KVCB VCB)    		 139 126 100LL, Jet A
    29.7 Sonoma Skypark Airport
    (0Q9)    		 186 173 100LL
    30.2 University Airport
    (KEDU EDU)    		 115 102 100LL
    31.1 Colusa County Airport
    (O08)    		 33 20 100LL
    31.5 Petaluma Municipal Airport
    (O69)    		 200 187 100LL, Jet A
    31.8 Sonoma Valley Airport
    (0Q3)    		 187 174 100LL
    32.4 Napa County Airport
    (APC KAPC APC)    		 172 159 100LL, Jet A
    36.5 Sacramento International Airport
    (SMF KSMF SMF)    		 94 81 100LL, Jet A
    37.4 Gnoss Field Airport
    (NOT KDVO DVO)    		 193 180 100LL, Jet A
    42.1 Sutter County Airport
    (O52)    		 57 44 100LL
    42.7 Yuba County Airport
    (MYV KMYV MYV)    		 60 47 100LL, Jet A
    43.4 Sacramento Exec Airport
    (SAC KSAC SAC)    		 108 95 100LL, Jet A
    43.4 Rio Linda Airport
    (L36)    		 95 82 100LL

    Notices to Airmen (NOTAMS)

    NOTAMs

    List ALL 20CL NOTAMs
    View 20CL NOTAMs

    NOTAM Radius Search

    NOTAMS within

    Enter NOTAM radius search distance

    This field is required
    NM of 20CL

    NOTAM Flight Path Search (Enter from two to five locations below)

    NOTAMS within

    Enter NOTAM radius search distance

    This field is required
    NM of 20CL

    Remarks

    A110-1 HAZARDOUS STRIP-SURROUNDED BY HILLS, 95 FT FENCE TO FENCE.
    A110-2 FOR CD CTC OAKLAND ARTCC AT 510-745-3380.
    E111 FORM 7480-1 SUBMITTED FOR RECORDS.

    Runways

    Runway Summary

    Runways: 14/32
    Longest Runway: 14/32 is 3500 ft (1067 m) long
    Runways with an Instrument Approach:

    20CL Airport Runway Details

    Runway 14/32  3500 ft x 30 ft (1067 m x 9 m)
    Surface:  Gravel - No special surface treatment

    Runway 14

    Runway 32
    Glide Path Angle: 
    		 0.0 degrees 0.0 degrees
    Traffic Pattern: 
    		 Left Left

    Services

    Airframe Repair: 
    		 Minor
    Powerplant Repair: 
    		 Minor
    Bottled Oxygen: 
    		 None
    Bulk Oxygen: 
    		 None
    Fuel Available: 
    		 100LL
    Landing Fees: 
    		 No
    Parking: 
    		 Tiedowns available

    Ratings and Reviews

    Write a Review

    Rate categories

    Cleanliness
    Facilities
    Food & Shopping
    WiFi & Internet
    Staff & Service
    Transportation
    Parking
    On-time Performance

    Maps & Diagrams

    20CL Sectional

    Flight Planning
    at skyvector.com

    20CL Diagram


    Do you have a better diagram of this ?
    Please share it with us.