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O12
Grand Lake St Marys Seaplane Base
Official FAA Data Effective 2025-11-27 0901Z
Chart Supplement
AF/D
AF/D
VFR Chart of O12
Sectional Charts at SkyVector.com
IFR Chart of O12
Enroute Charts at SkyVector.com
Location Information for O12
Coordinates: N40°32.46' / W84°29.44'
Located 05 miles NE of St Marys, Ohio on 643 acres of land. View all Airports in Ohio.
Estimated Elevation is 871 feet MSL.
Operations Data
Seaplane Base Use:Open to the public
Activation Date:April 1995
Status:Operational
Control Tower:No
Seg-Circle:No
Beacon:None
A.R.T.C.C.:INDIANAPOLIS
F.S.S.:DAYTON
NOTAMs Facility:DAY (NOTAM-D available)
Sectional Chart:DETROIT
AirspaceAnalysis:CONDITIONAL
PRVDD 20:1 APCH; OIL WELL TO THE S MKD & LGTD; SEA LANES MKD & LGTD PER AC 150/5395-1.
Attendance:APR-NOV/ALL/0800-1700
ARPT CLSD NOV 15 TO APR 1 & MEMORIAL & LABOR DAY.
Airport Communications
CTAF:122.900
AWOS-3PT at AXV (9.4 E):128.325 419-753-2821
AWOS-3 at VNW (20.1 N):125.175 419-232-2967
AWOS-3PT at VES (20.2 S):125.9 937-526-3154
Nearby Navigation Aids
IDNameFreqRadial / Range
VOT ROD ROSEWOOD 117.50 311°25.5
VOD DQN DAYTON 114.50 353°31.7
VOT FWA FORT WAYNE 117.80 135°41.2
VOT FBC FLAG CITY 108.20 235°41.7
IDNameFreqBearing / Range
VOT AT BRUNY 315 170°42.2
VOT JN BALLL 365 240°43.8
VOT GW SHENK 227 336°50.4
VOT SQ PNTHR 227 212°54.4
Runway 09W/27W
Dimensions:7000 x 4000 feet / 2134 x 1219 meters
Surface:Water
Runway 09WRunway 27W
Traffic Pattern: Right
Markings:Buoys in good condition.Buoys in good condition.
Services Available
Fuel:100LL (blue)
Transient Storage:NONE
Airframe Repair:NOT AVAILABLE
Engine Repair:NOT AVAILABLE
Bottled Oxygen:NOT AVAILABLE
Bulk Oxygen:NOT AVAILABLE
Ownership Information
Ownership:Publicly owned
Owner:OHIO DIV OF PARKS & REC
834 EDGEWATER DR
SAINT MARYS, OH 45885-1132
419-394-3611
Manager:DAVID FALER, ASST PARK MGR
GRAND LAKE SAINT MARYS STATE PARK, 834 EDGEWATER DR
SAINT MARYS, OH 45885-1132
419-394-3611
CELL 419-656-7060.
Other Remarks
  • NO NGT OPS.
  • NO PUB DOCKS; PPR FOR PVT DOCK TIE UP; CALL KOZY MARINA 419-394-8797.
  • FOR CD CTC COLUMBUS APCH AT 614-338-8537.
  • 0LL 100LL AVBL ON REQ, PPR, CTC KOZY MARINA 419-394-8797.
  • ACFT OPRG AT GRAND LAKE ST MARYS SHOULD MNT TFC ON LAKEFIELD CTAF & NEIL ARMSTRONG CTAF.
Nearby Airports with Instrument Procedures
IDNameHeading / Distance
Lakefield Airport KCQA Lakefield Airport 222°4.6
Neil Armstrong Airport KAXV Neil Armstrong Airport 107°9.3
Van Wert County Airport KVNW Van Wert County Airport 344°20.1
Darke County Airport KVES Darke County Airport 185°20.3
Lima Allen County Airport KAOH Lima Allen County Airport 064°23.4
Portland Municipal Airport KPLD Portland Municipal Airport 256°23.6
Sidney Municipal Airport KSCA Sidney Municipal Airport 138°23.9
Piqua/Hartzell Field Airport I17 Piqua/Hartzell Field Airport 159°24.1
Randolph County Airport I22 Randolph County Airport 222°30.1
Bellefontaine Regional Airport KEDJ Bellefontaine Regional Airport 107°32.4
Bluffton Airport 5G7 Bluffton Airport 053°35.1
Putnam County Airport KOWX Putnam County Airport 037°37.6