AirNav: O12 - Grand Lake St Marys Seaplane Base

O12

Grand Lake St Marys Seaplane Base
St Marys, Ohio, USA

GOING TO ST MARYS?

Reserve a Hotel Room

FAA INFORMATION EFFECTIVE 06 AUGUST 2026

Location

FAA Identifier:	O12
Lat/Long:	40-32-27.6700N 084-29-26.4300W 40-32.461167N 084-29.440500W 40.5410194,-84.4906750 (estimated)
Elevation:	871 ft. / 265 m (estimated)
From city:	5 miles W of ST MARYS, OH
Time zone:	UTC -4 (UTC -5 during Standard Time)
Zip code:	45822

Seaplane Base Operations

Seaplane Base use:	Open to the public
Activation date:	04/1995
Control tower:	no
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

Seaplane Base Communications

CTAF:	122.9
WX AWOS-3PT at AXV (9 nm E):	128.325 (419-753-2821)

ACFT OPRG AT GRAND LAKE ST MARYS SHOULD MNT TFC ON LAKEFIELD CTAF & NEIL ARMSTRONG CTAF.

Nearby radio navigation aids

VOR radial/distance		VOR name		Freq		Var
RODr312/25.5		ROSEWOOD VORTAC		117.50		05W
DQNr353/31.8		DAYTON VOR/DME		114.50		01W

Seaplane Base Services

Fuel available:

100LL
100LL:100LL AVBL ON REQ, PPR, CTC KOZY MARINA 419-394-8797.

Runway Information

Runway 9W/27W

Dimensions:	7000 x 4000 ft. / 2134 x 1219 m
Surface:	water
	RUNWAY 9W	RUNWAY 27W
Traffic pattern:	left	right
Markings:	buoys, in good condition	buoys, in good condition

Seaplane Base Ownership and Management from official FAA records

Ownership:	Publicly-owned
Owner:	OHIO DIV OF PARKS & REC 834 EDGEWATER DR SAINT MARYS, OH 45885-1132 Phone 419-394-3611
Manager:	DAVID FALER, ASST PARK MGR GRAND LAKE SAINT MARYS STATE PARK, 834 EDGEWATER DR SAINT MARYS, OH 45885-1132 Phone 419-394-3611 CELL 419-656-7060.

Additional 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.

Instrument Procedures

There are no published instrument procedures at O12.

Some nearby airports with instrument procedures:

KCQA - Lakefield Airport (5 nm SW)
KAXV - Neil Armstrong Airport (9 nm E)
KVNW - Van Wert County Airport (20 nm N)
KVES - Darke County Airport (20 nm S)
KAOH - Lima Allen County Airport (23 nm NE)

Loc | Ops | Rwys | IFR | FBO | Links
Com | Nav | Svcs | Stats | Notes

Area around O12 (Grand Lake St Marys Seaplane Base)

Road maps at: MapQuest Bing Google

Aerial photo

Sectional chart

Airport distance calculator
Flying to Grand Lake St Marys Seaplane Base? Find the distance to fly. From to O12

Sunrise and sunset

Times for 28-Aug-2026

	Local (UTC-4)	Zulu (UTC)
Morning civil twilight	06:34	10:34
Sunrise	07:02	11:02
Sunset	20:16	00:16
Evening civil twilight	20:44	00:44

Current date and time

Zulu (UTC)	28-Aug-2026 19:09:35
Local (UTC-4)	28-Aug-2026 15:09:35

METAR

KAXV
9nm E

281855Z AUTO 01007KT 10SM SCT039 SCT046 SCT060 25/16 A3017 RMK AO2

TAF

KDAY 40nm S	281721Z 2818/2918 02008KT P6SM SCT045 FM290000 05006KT P6SM SKC FM291500 13005KT P6SM FEW050
KFWA 41nm NW	281720Z 2818/2918 07006KT P6SM FEW050 FM290000 13003KT P6SM FEW250
KFDY 47nm NE	281730Z 2818/2918 05008KT P6SM SCT035 FM290300 11003KT P6SM SCT250 FM291400 19006KT P6SM FEW040 SCT250
KFFO 48nm SE	281100Z 2811/2917 36006KT 9999 MIFG FEW080 QNH3007INS BECMG 2813/2814 01009KT 9999 NSW SCT045 QNH3007INS BECMG 2823/2824 05006KT 9999 SKC QNH3008INS BECMG 2914/2915 16009KT 9999 SCT250 QNH3015INS TX29/2820Z TN16/2911Z

NOTAMs

Click for the latest NOTAMs

NOTAMs are issued by the DoD/FAA and will open in a separate window not controlled by AirNav.

Would you like to see your business listed on this page?
	If your business provides an interesting product or service to pilots, flight crews, aircraft, or users of the Grand Lake St Marys Seaplane Base, you should consider listing it here. To start the listing process, click on the button below

Other Pages about Grand Lake St Marys Seaplane Base


Copyright © AirNav, LLC. All rights reserved.	Privacy Policy Contact