MOUND VALLEY FARM
HYDRO, OK
Mound Valley Farm (OK77) is a privately owned, non-towered airport in Hydro, Oklahoma. The airport is served by a single runway, 03/21, measuring 1,800 feet long and 60 feet wide with a turf surface.
Operations are under visual flight rules only, as no instrument approach procedures are published. The non-towered strip has no published frequencies, so pilots keep their own separation using standard see-and-avoid procedures. No fuel service is listed for the field. As a private-use facility, it is not open to transient traffic without prior permission.
The field rests at 1,628 feet above mean sea level.