FAA INFORMATION EFFECTIVE 30 OCTOBER 2025
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 -5 (UTC -4 during Daylight Saving 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: | 122.8 |
| WX AWOS-3: | 119.275 (937-644-2967) |
| COLUMBUS APPROACH: | 125.95 |
| COLUMBUS DEPARTURE: | 125.95 |
| IC: | 125.95 |
| WX AWOS-3 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 30 October 2025 at 0901Z to 27 November 2025 at 0900Z.
IAPs - Instrument Approach Procedures |
| RNAV (GPS) RWY 09 | |
download (232KB) |
| RNAV (GPS) RWY 27 | |
download (217KB) |
| 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:
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Google
| Aerial photo |
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 17-Nov-2025
| | Local (UTC-5) | | Zulu (UTC) |
| Morning civil twilight | | 06:53 | | 11:53 |
| Sunrise | | 07:22 | | 12:22 |
| Sunset | | 17:14 | | 22:14 |
| Evening civil twilight | | 17:44 | | 22:44 |
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| Current date and time |
| Zulu (UTC) | 17-Nov-2025 09:16:41 |
| Local (UTC-5) | 17-Nov-2025 04:16:41 |
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| METAR |
| KMRT | 170855Z AUTO 28004KT 10SM CLR M04/M07 A2996 RMK AO2 T10401067
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KDLZ 11nm E | 170855Z AUTO 25004KT 10SM CLR M01/M05 A2995 RMK AO2
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KOSU 15nm SE | 170853Z AUTO 28005KT 10SM CLR M01/M06 A2996 RMK AO2 SLP152 T10111061 51010
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KUYF 18nm S | 170835Z AUTO 27005KT 10SM CLR M04/M06 A2998 RMK AO2
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KI74 19nm W | 170855Z AUTO 00000KT 10SM CLR M03/M05 A2997 RMK AO2
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| TAF |
KCMH 25nm SE | 170525Z 1706/1806 30009KT P6SM SKC FM180400 VRB03KT P6SM BKN150
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KLCK 32nm SE | 170525Z 1706/1806 29008KT P6SM SKC FM180400 VRB03KT P6SM BKN150
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| NOTAMs |
NOTAMs are issued by the DoD/FAA and will open in a separate window not controlled by AirNav.
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