Marin County Airport - Gnoss Field
Daylight today(Jul 16, 2026, local time)
About 14h 32m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.
About Marin County Airport - Gnoss Field
Marin County Airport or Gnoss Field, formerly O56, is a public airport two miles northeast of Novato, California, United States. It covers 90 acres (360,000 m2), and has one runway and one helipad.
Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.
Live weather
KDVOLive departures & arrivals
Flight data by AeroDataBox. Times are estimates — not for navigation; confirm with the airline.
Where you can fly from here
Current scheduled routes & daily frequency by AeroDataBox. Approximate — confirm bookable schedules with the airline.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (1)
| Runway | Length | Width | Surface | Lighting | Status |
|---|---|---|---|---|---|
| 13 / 31 | 3,303 ft / 1,007 m | 75 ft | Asp | Lighted | Open |
Radio frequencies (3)
| Type | Description | Frequency |
|---|---|---|
| ARTC | OAKLAND CNTR | 127.800 MHz |
| AWOS | AWOS 3 | 120.675 MHz |
| UNIC | CTAF/UNICOM | 123.075 MHz |
Instrument procedures & charts
Instrument approaches (1)
Arrivals (STARs) (4)
Takeoff & alternate minimums (2)
Charts published by the FAA (public domain) and updated each 28-day cycle. Always fly the current, official chart. Full charts page.
Airspace in this area(1)
| Name | Class | Type | Floor | Ceiling |
|---|---|---|---|---|
| DZ PCA054 0800-1800 DAILY | Special use | Danger | GND | 9500 ft MSL |
Approximate bounding-box match from OpenAIP · all United States airspace. Reference only — consult official charts for exact boundaries and status.
Tall obstacles nearby
| Obstacle | Height AGL | Top (MSL) | Lit |
|---|---|---|---|
| Harkleroad Wind Turbine | — | 46 ft | — |
| Obstacle | — | 591 ft | — |
Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.
Nearby airports
Great-circle distance and true bearing from Marin County Airport - Gnoss Field.
Frequently asked questions
What is the ICAO code for Marin County Airport - Gnoss Field?
The ICAO code for Marin County Airport - Gnoss Field is KDVO, and its IATA code is NOT.
Where is Marin County Airport - Gnoss Field located?
Marin County Airport - Gnoss Field is small airport located in Novato, United States, at an elevation of 2 ft (1 m).
How many runways does Marin County Airport - Gnoss Field have?
Marin County Airport - Gnoss Field has 1 runway, the longest being 3,303 ft / 1,007 m.
What time zone is Marin County Airport - Gnoss Field in?
Marin County Airport - Gnoss Field is in the America/Los Angeles time zone (UTC-07:00).
What is the magnetic variation at Marin County Airport - Gnoss Field?
The magnetic variation (declination) at Marin County Airport - Gnoss Field is approximately 13° E, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Marin County Airport - Gnoss Field?
The nearest airport to Marin County Airport - Gnoss Field is Sonoma Valley Airport (0Q3), about 6.9 nm to the ne, followed by Petaluma Municipal Airport and San Rafael Airport.
Is the information on this page suitable for flight planning?
No. Marin County Airport - Gnoss Field data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.