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The Pilots Desk
Heliport

Watertown / Brownlee Heliport

ICAO 15SD
Coordinates
44.8833°N, 97.1081°W
Elevation
1,720 ft (524 m)
Type
Heliport
Region
US-SD
Time zone
Chicago(UTC-05:00)
Magnetic variation
2.8° E

Daylight today(Jul 16, 2026, local time)

Civil dawn
05:22
Sunrise
05:58
Sunset
21:12
Civil dusk
21:48

About 15h 14m 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 Watertown / Brownlee Heliport

Watertown / Brownlee Heliport is a heliport in United States. It sits at an elevation of 1,720 ft (524 m). It observes America/Chicago local time. The nearest airport is Watertown Regional Airport (ATY), about 2.7 nm to the nw.

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

Map

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

Runways (0)

No runway data recorded for this airport.

Airspace in this area(1)

NameClassTypeFloorCeiling
WATERTOWN CLASS E2Class EControlledGND17999 ft MSL

Approximate bounding-box match from OpenAIP · all United States airspace. Reference only — consult official charts for exact boundaries and status.

Tall obstacles nearby

ObstacleHeight AGLTop (MSL)Lit
Obstacle1,916 ft
Obstacle1,919 ft
Obstacle1,886 ft
Obstacle1,909 ft
Obstacle1,883 ft
Obstacle1,900 ft
Obstacle1,913 ft
Obstacle1,913 ft

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

Nearby airports

Great-circle distance and true bearing from Watertown / Brownlee Heliport.

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 Watertown / Brownlee Heliport located?

Watertown / Brownlee Heliport is heliport located in United States, at an elevation of 1,720 ft (524 m).

What time zone is Watertown / Brownlee Heliport in?

Watertown / Brownlee Heliport is in the America/Chicago time zone (UTC-05:00).

What is the magnetic variation at Watertown / Brownlee Heliport?

The magnetic variation (declination) at Watertown / Brownlee Heliport is approximately 2.8° E, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.

What airports are near Watertown / Brownlee Heliport?

The nearest airport to Watertown / Brownlee Heliport is Watertown Regional Airport (ATY), about 2.7 nm to the nw, followed by South Shore Airport and Clear Lake Municipal Airport.

Is the information on this page suitable for flight planning?

No. Watertown / Brownlee Heliport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.