Airport information
- FAA LID
- 2O1 / GNF
- Coordinates
- 39.9439, -120.9450
- Elevation
- 3,415 ft MSL
- Magnetic variation
- 17E
- Sectional chart
- SAN FRANCISCO
- Airport use
- Public
- Control tower
- No
- ARTCC
- OAKLAND (ZOA)
- Flight service (FSS)
- RANCHO MURIETA
- NOTAM facility
- RIU
- Attendance
- UNATNDD
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1949/12
- Distance from city
- 1 N
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 | 05:02 AM | 12:02Z |
| Sunrise | 05:35 AM | 12:35Z |
| Sunset | 08:36 PM | 03:36Z |
| Evening civil twilight Loggable night begins | 09:09 PM | 04:09Z |
Plan a flight from 2O1
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT MIRL RWY 07/25 - CTAF. on 122.7 — 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 06 · 065°
- Pattern
- left (turns left)
- TPA
- 4,400 ft MSL (≈1,000 AGL)
- CTAF
- 122.7
Enter the left downwind for Rwy 06 at 4,400 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 06/24
4,105 ft × 60 ft · ASPH-G- Heading
- 065° mag · 82° true
- Heading
- 245° mag · 262° true
| Runway | Length | Your margin |
|---|---|---|
| 06/24 | 4,105 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| RDO | 122.4 | RANCHO RDO |
| UNIC | 122.7 | CTAF/UNICOM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100LL
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management
Remarks FAA
- PREDATES TO 1958 FA ACT.
- ROTG BCN LOCATED 2000 FT NORTH OF ARPT ON TOP OF HILL. SECONDARY WHITE BCN 3 MI SOUTH OF ARPT.
- DUE TO PROXIMITY OF TERRAIN NRML OPNS ARE: FOR DEPS/TOUCH AND GO RWY 07. LDGS ON RWYS 07 AND 25.
- ULTRALIGHTS ON AND INVOF ARPT.
- RAPIDLY RISING TERRAIN WITH +100 FT TREES ON NORTH SIDE OF RY.
- APRT RESTRICTED BY APRT OPER TO ACFT WITH MAX CERT TKOF WEIGHT OF 12,500 LBS OR LESS.
- FIREFIGHTING ACFT INVOF ARPT MAY-OCT.
- FOR CD CTC NORCAL APCH AT 916-361-6874.
- ACTVT MIRL RWY 07/25 - CTAF.
- DIRECTOR OF FACILITIES AND AIRPORTS.
- FAC AND ARPTS OFC IN QUINCY. PHONE 530-283-6299.
- 24 HR 100LL FUEL BY CREDIT CARD.
- RWY 07 +19 FT ROAD 350 FT FM RWY 7 END 7:1 CLEARANCE SLOPE TO THLD.
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 2O1 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 2O1
Gansner Field (2O1 · GNF) is an airport in Quincy, CA, at 3,415 ft MSL. It has 1 runway, the longest 4,105 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 2O1, refreshed from the Aviation Weather Center and FAA NASR.
Does 2O1 have a control tower?
No. Gansner Field is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at 2O1?
Gansner Field has 1 runway; the longest is 4,105 ft. See the Runways tab for headings, surface, and lighting.
Where is 2O1?
Gansner Field is in Quincy, CA, at an elevation of 3,415 ft MSL. Coordinates: 39.9439, -120.9450.
Fly out of 2O1 often?
Save 2O1 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.