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The Pilots Desk
Small airport

Mound Valley Farm Airport

ICAO OK77🇺🇸 Hydro
Coordinates
35.4159°N, 98.5425°W
Elevation
1,628 ft (496 m)
Type
Small airport
Region
US-OK
Time zone
Chicago(UTC-05:00)
Magnetic variation
3.6° E

Daylight today(Oct 19, 2026, local time)

Civil dawn
07:18
Sunrise
07:44
Sunset
18:56
Civil dusk
19:22

About 11h 13m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.

About Mound Valley Farm Airport

Mound Valley Farm Airport is a small airport in Hydro, United States. It sits at an elevation of 1,628 ft (496 m) and has 1 runway, the longest 1,800 ft / 549 m. It observes America/Chicago local time. The nearest airport is Entz Arts Airport (US-0679), about 3 nm to the nw.

Summary generated from this airport’s structured data — reference only.

Live traffic nearby

Aircraft currently within ~40 nm, from live ADS-B. Positions are approximately real-time — not for navigation.

Loading live traffic…

Live ADS-B by adsb.lol & the OpenSky Network. Not for navigation.

Map

Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.

Runways (1)

RunwayLengthWidthSurfaceLightingStatus
3 / 211,800 ft / 549 m60 ftTurfUnlitOpen

Tall obstacles nearby

ObstacleHeight AGLTop (MSL)Lit
Obstacle—1,847 ft—
Obstacle—1,827 ft—
Obstacle—1,814 ft—
Obstacle—1,834 ft—
Obstacle—1,821 ft—
Obstacle—1,808 ft—
Obstacle—1,742 ft—
Obstacle—1,844 ft—

Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.

Nearby airports

Great-circle distance and true bearing from Mound Valley Farm Airport.

Live tracking (FR24) Open in Maps
🇺🇸 More airports in United States📘 Flying in the United States: a pilot's guide

Frequently asked questions

Where is Mound Valley Farm Airport located?

Mound Valley Farm Airport is small airport located in Hydro, United States, at an elevation of 1,628 ft (496 m).

How many runways does Mound Valley Farm Airport have?

Mound Valley Farm Airport has 1 runway, the longest being 1,800 ft / 549 m.

What time zone is Mound Valley Farm Airport in?

Mound Valley Farm Airport is in the America/Chicago time zone (UTC-05:00).

What is the magnetic variation at Mound Valley Farm Airport?

The magnetic variation (declination) at Mound Valley Farm Airport is approximately 3.6° E, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.

What airports are near Mound Valley Farm Airport?

The nearest airport to Mound Valley Farm Airport is Entz Arts Airport (US-0679), about 3 nm to the nw, followed by Broken B Airport and Muncy Airport.

Is the information on this page suitable for flight planning?

No. Mound Valley Farm Airport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.