| Latitude | 38.7456 | Longitude | -77.0022 | Altitude (feet) | 49 |
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| Lat (DMS) | 38° 44' 44N | Long (DMS) | 77° 0' 8W | Altitude (meters) | 14 |
| Time zone (est) | UTC-5(-4DT) |
| Approximate population for 7 km radius from this point: 65637 |
| Google links for Harmony Hall | Google links for Harmony Hall, United States |
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Nearby airports:
| Code | IATA | Name | City | Distance | Bearing | Airlines |
| VKX | | POTOMAC AIRFIELD | FRIENDLY | 2 nm E | 86 | |
| W32 | | WASHINGTON EXEC HYDE FLD | | 3 nm E | 87 | |
| KDCA | DCA | RONALD REAGAN WASHINGTON NATL | Washington | 6 nm N | 345 | Check |
| KADW | ADW | ANDREWS AFB | Camp Springs | 7 nm E | 58 | Unlikely |
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| Pages in Wikipedia that reference near here:
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