O12 Grand Lake St Marys Seaplane Base
St Marys, OH · 5 miles W of ST MARYS, OH
Non-towered
Publicly-owned
Location & operations
- Elevation
- 871.0 ft
- Coordinates
- 40-32-27.6700N 084-29-26.4300W
- Lat / Long
- 40.5410194, -84.490675
- Time zone
- UTC -4 (UTC -5 during Standard Time)
- Activated
- 04/1995
- ARTCC
- INDIANAPOLIS CENTER
- FSS
- DAYTON FLIGHT SERVICE STATION
- NOTAMs facility
- DAY (NOTAM-D service available)
- Attendance
- APR-NOV 0800-1700 ARPT CLSD NOV 15 TO APR 1 & MEMORIAL & LABOR DAY.
- Segmented circle
- no
Airport location no published diagram
Range from O12
Runways
Longest 7000 ft
- Dimensions
- 7000 x 4000 ft. / 2134 x 1219 m
- Surface
- water
- Traffic pattern
- left
- Markings
- buoys, in good condition
Communications
- Control Tower
- no
- Ctaf
- 122.9
Services
- Fuel
- 100LL 100LL:100LL AVBL ON REQ, PPR, CTC KOZY MARINA 419-394-8797.
- Fuel available
- 100LL 100LL:100LL AVBL ON REQ, PPR, CTC KOZY MARINA 419-394-8797.
Airport data aggregated from public FAA/AirNav sources for reference only — always consult official charts and NOTAMs for flight planning.