FAA INFORMATION EFFECTIVE 29 OCTOBER 2026
Location
| FAA Identifier: | MRT |
| Lat/Long: | 40-13-28.1120N 083-21-06.2940W
40-13.468533N 083-21.104900W
40.2244756,-83.3517483
(estimated) |
| Elevation: | 1020.7 ft. / 311.1 m (surveyed) |
| Variation: | 05W (1985) |
| From city: | 1 mile SE of MARYSVILLE, OH |
| Time zone: | UTC -4 (UTC -5 during Standard Time) |
| Zip code: | 43040 |
Airport Operations
| Airport use: | Open to the public |
| Activation date: | 07/1967 |
| Control tower: | no |
| ARTCC: | INDIANAPOLIS CENTER |
| FSS: | DAYTON FLIGHT SERVICE STATION |
| NOTAMs facility: | MRT (NOTAM-D service available) |
| Attendance: | 0800-1700 |
| Wind indicator: | lighted |
| Segmented circle: | no |
| Lights: | ACTVT REIL RWY 09 & 27; PAPI RWY 09 & 27; MIRL RWY 09/27 - CTAF. |
| Beacon: | white-green (lighted land airport)
Operates sunset to sunrise. |
| Landing fee: | no, RAMP FEE FOR COML ACFT. |
Airport Communications
| CTAF/UNICOM: | 123.05 |
| WX AWOS-3PT: | 126.5 (937-553-0033) |
| COLUMBUS APPROACH: | 125.95 |
| COLUMBUS DEPARTURE: | 125.95 |
| IC: | 125.95 |
| WX AWOS-3PT at DLZ (11 nm E): | 119.025 (740-203-1878) |
| WX ASOS at OSU (15 nm SE): | 121.35 (614-451-2465) |
| WX AWOS-3PT at UYF (18 nm S): | 120.85 (740-852-2844) |
| WX AWOS-3 at I74 (19 nm W): | 118.325 (937-484-5863) |
Nearby radio navigation aids
| VOR radial/distance | | VOR name | | Freq | | Var |
|---|
| BUDr214/(27.0) | | BUCKEYE VOR | | 109.80 | | 05W |
| RODr102/31.9 | | ROSEWOOD VORTAC | | 117.50 | | 05W |
| APEr283/35.3 | | APPLETON VORTAC | | 116.70 | | 06W |
| NDB name | | Hdg/Dist | | Freq | | Var | | ID |
|---|
| FULER | | 327/11.5 | | 515 | | 05W | | OS | --- ... |
| COURT HOUSE | | 009/37.5 | | 414 | | 06W | | CSS | -.-. ... ... |
Airport Services
| Fuel available: | 100LL JET-A1 JET-A1+
100LL:FUEL AVBL H24 SELF SVC VIA CREDIT CARD. |
| Parking: | hangars and tiedowns |
| Airframe service: | MAJOR |
| Powerplant service: | MAJOR |
| Bottled oxygen: | NONE |
| Bulk oxygen: | NONE |
Runway Information
Runway 9/27
| Dimensions: | 4218 x 75 ft. / 1286 x 23 m |
| Surface: | asphalt, in fair condition |
| Weight bearing capacity: | |
| Runway edge lights: | medium intensity |
| RUNWAY 9 | | RUNWAY 27 |
| Latitude: | 40-13.438457N | | 40-13.523258N |
| Longitude: | 083-21.546040W | | 083-20.646537W |
| Elevation: | 1020.6 ft. | | 996.8 ft. |
| Traffic pattern: | left | | left
CK NOTAMS FOR STS OF AEROBATIC BOX SOUTH OF RWY 09/27 & 08/26 - RP RWY 27 & 26 WHEN ACTV. |
| Runway heading: | 088 magnetic, 083 true | | 268 magnetic, 263 true |
| Displaced threshold: | no | | 123 ft. |
| Markings: | nonprecision, in good condition | | nonprecision, in good condition |
| Visual slope indicator: | 4-light PAPI on left (3.00 degrees glide path) | | 4-light PAPI on left (3.00 degrees glide path) |
| Runway end identifier lights: | yes | | yes |
| Touchdown point: | yes, no lights | | yes, no lights |
| Obstructions: | none | | 20 ft. rr, 425 ft. from runway, 260 ft. right of centerline, 11:1 slope to clear
APCH RATIO 27:1 TO DTHR DUE TO +20 FT RR, 425 FT DIST, 260 FT R. |
Runway 8/26
| Dimensions: | 2522 x 80 ft. / 769 x 24 m |
| Surface: | turf, in good condition |
| Runway edge markings: | THR & EDGES MKD WITH CONES. |
| RUNWAY 8 | | RUNWAY 26 |
| Latitude: | 40-13.422530N | | 40-13.473238N |
| Longitude: | 083-21.388198W | | 083-20.850388W |
| Elevation: | 1015.3 ft. | | 995.6 ft. |
| Traffic pattern: | left | | left |
| Runway heading: | 088 magnetic, 083 true | | 268 magnetic, 263 true |
| Runway end identifier lights: | no | | no |
| Touchdown point: | yes, no lights | | yes, no lights |
Airport Ownership and Management from official FAA records
| Ownership: | Publicly-owned |
| Owner: | UNION COUNTY ARPT AUTH
COUNTY COURTHOUSE, 215 W 5TH ST
MARYSVILLE, OH 43040
Phone 937-644-2055 |
| Manager: | DAVID HOLDEN
760 CLYMER RD
MARYSVILLE, OH 43040-9502
Phone 937-644-2055
AFT HRS & EMERG 937-741-3120. |
Additional Remarks
| A30A-09 | CALM WIND RWY. |
| - | DEER, BIRDS, & OTR WILDLIFE ON & INVOF ARPT. |
| - | FOR CD CTC COLUMBUS APCH AT 614-338-8537. |
Instrument Procedures
NOTE: All procedures below are presented as PDF files. If you need a reader for these files, you should download the free Adobe Reader.NOT FOR NAVIGATION. Please procure official charts for flight.
FAA instrument procedures published for use from 29 October 2026 at 0901Z to 26 November 2026 at 0900z.
IAPs - Instrument Approach Procedures |
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| RNAV (GPS) RWY 09 | |
download (233KB) |
| RNAV (GPS) RWY 27 | |
download (219KB) |
| NOTE: Special Alternate Minimums apply | |
download (53KB) |
| NOTE: Special Take-Off Minimums/Departure Procedures apply | |
download (478KB) |
Other nearby airports with instrument procedures:
KDLZ - Delaware Municipal Airport - Jim Moore Field (11 nm E)
KOSU - Ohio State University Airport (15 nm SE)
KUYF - Madison County Airport (18 nm S)
I74 - Grimes Field Airport (19 nm W)
KTZR - Bolton Field Airport (22 nm SE)
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Road maps at:
MapQuest
Bing
Google
| Aerial photo |
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WARNING: Photo may not be current or correct
Taken late December 2006
Do you have a better or more recent aerial photo of Union County Airport that you would like to share? If so, please send us your photo.
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| Sectional chart |
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| Airport distance calculator |
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| Sunrise and sunset |
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Times for 12-Nov-2026
| | Local
(UTC-5) | | Zulu
(UTC) |
|---|
| Morning civil twilight | | 06:48 | | 11:48 |
| Sunrise | | 07:17 | | 12:17 |
| Sunset | | 17:19 | | 22:19 |
| Evening civil twilight | | 17:47 | | 22:47 |
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| Current date and time |
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| Zulu (UTC) | 12-Nov-2026 08:58:05 |
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| Local (UTC-5) | 12-Nov-2026 03:58:05 |
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| METAR |
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| KMRT | 120835Z AUTO 36012KT 3SM -RA BR SCT011 BKN019 OVC038 08/08 A2958 RMK AO2
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KDLZ
11nm E | 120715Z AUTO 35009G14KT 9SM SCT028 BKN044 OVC055 09/07 A2958 RMK AO2
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KOSU
15nm SE | 120853Z AUTO 36011KT 4SM RA BR BKN008 OVC042 08/07 A2955 RMK AO2 SLP007 P0007 60010 T00830072 56013
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KUYF
18nm S | 120855Z AUTO 34015G20KT 10SM DZ OVC007 08/08 A2960 RMK AO2
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KI74
19nm W | 120835Z AUTO 35011G17KT 5SM -RA BKN008 OVC013 07/07 A2962 RMK AO2 P0001
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| TAF |
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KCMH
25nm SE | 120541Z 1206/1306 27005KT P6SM -SHRA SCT025 BKN080 FM120800 34011KT P6SM -SHRA SCT018 OVC025 FM121500 32012G20KT P6SM BKN015 OVC025 FM121900 31012G20KT P6SM SCT018 OVC025 FM130000 34011KT P6SM SCT008 OVC012 PROB30 1300/1304 3SM -SHRA BKN008
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KLCK
32nm SE | 120541Z 1206/1306 28004KT P6SM -SHRA SCT025 BKN080 FM120800 34009KT P6SM -SHRA SCT018 OVC025 FM121500 32012G20KT P6SM BKN015 OVC025 FM121900 31012G20KT P6SM SCT018 OVC025 FM130000 34010KT P6SM SCT008 OVC012 PROB30 1300/1304 3SM -SHRA BKN008
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| NOTAMs |
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NOTAMs are issued by the DoD/FAA and will open in a separate window not controlled by AirNav.
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