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GRAND LAKE ST MARYS - Airport Diagram
LiveATC.net: Live Air Traffic - From Their Headsets to You

O12
Local O12
GRAND LAKE ST MARYS
PublicPUB

5 miles NE of ST MARYS, OH, US
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LiveATC.net: Live Air Traffic - From Their Headsets to You
Status
Operational
Coordinates
40° 32' 28"N 84° 29' 26"W
Elevation
871' MSL
Pattern Alt
1871' MSL
Mag Variation
6°W
Fuel
100LL
FSS
DAYTON (DAY)
Sectional
DETROIT
ARTCC
INDIANAPOLIS (ZID)
Data Effective
5/14/26-6/11/26
KAXV (9nm) VFR
12:15 AM EDT  
Clear
10sm
61°F
48°F
30.23"Hg
Calm
AO2
METAR KAXV 040415Z AUTO 00000KT 10SM CLR 16/09 A3023 RMK AO2
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Common

CTAF 122.9
ACFT OPRG AT GRAND LAKE ST MARYS SHOULD MNT TFC ON LAKEFIELD CTAF & NEIL ARMSTRONG CTAF.

FAA A/FD Pages

Terminal Area Forecast

KDAY (40nm)
Wed, 6/3 7:20 PM EDT
Wed, 6/3 8:00 PM EDT - Thu, 6/4 8:00 PM EDT
VFR
8:00 PM EDT - 11:00 AM EDT
Few 25,000'
6sm
140° 3kts
VFR
11:00 AM EDT - 8:00 PM EDT
Few 25,000'
6sm
220° 8kts
TAF KDAY 032320Z 0400/0424 14003KT P6SM FEW250
   FM041500 22008KT P6SM FEW250
O12
EffectiveExpiresCategoryNOTAM
Domestic
4/23/26
1150Z
8/20/26
2359Z
!DAY 04/197 O12 OBST TOWER LGT (ASR 1217931) 404412.80N0842017.00W (13.7NM NNE O12) 1128.0FT (310.0FT AGL) U/S 2604231150-2608202359
No
APR-NOV 0800-1700
ARPT CLSD NOV 15 TO APR 1 & MEMORIAL & LABOR DAY.
OHIO DIV OF PARKS & REC
834 EDGEWATER DR
SAINT MARYS, OH 45885
Phone: 419-394-3611
DAVID FALER, ASST PARK MGR
GRAND LAKE SAINT MARYS STATE PARK 834 EDGEWATER DR
SAINT MARYS, OH 45885
Phone: 419-394-3611
DAYTON FSS (DAY)
Toll Free: 1-800-WX-BRIEF
DAY
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N/A
N/A
No
No
None
No
None
None
None
None
None

Runway 09W/27W

7000 ft. x 4000 ft.
 
WATER 
NONE 
 
 
-- 
-- 
-- 
-- 
  Runway 09W Runway 27W
True Heading Not ListedNot Listed
Traffic Pattern Right
Markings BUOY BUOY
Markings Condition GOOD GOOD
Latitude N/A N/A
Longitude N/A N/A
Elevation -- --
Threshold Crossing Height -- --
Visual Glide Path Angle -- --
Visual Slope Indicator -- --
Approach Lights
Centerline Lights
Runway End Identifier Lights
A110-1NO NGT OPS.
A110-2NO PUB DOCKS; PPR FOR PVT DOCK TIE UP; CALL KOZY MARINA 419-394-8797.
A110-3FOR CD CTC COLUMBUS APCH AT 614-338-8537.
A16CELL 419-656-7060.
A17-M1ARPT CLSD NOV 15 TO APR 1 & MEMORIAL & LABOR DAY.
A70-100LL100LL AVBL ON REQ, PPR, CTC KOZY MARINA 419-394-8797.
A82ACFT OPRG AT GRAND LAKE ST MARYS SHOULD MNT TFC ON LAKEFIELD CTAF & NEIL ARMSTRONG CTAF.
E111PRVDD 20:1 APCH; OIL WELL TO THE S MKD & LGTD; SEA LANES MKD & LGTD PER AC 150/5395-1.
GRAND LAKE ST MARYS (IATA: O12) is a public seaplane base located in ST MARYS, OH, US.