Rosario Seaplane Base
Daylight today(Jul 16, 2026, local time)
About 15h 43m 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 Rosario Seaplane Base
Rosario Seaplane Base is a public-use seaplane base located adjacent to Rosario on Orcas Island in San Juan County, Washington, United States. It is owned by the Rosario Resort.
Summary from Wikipedia licensed under CC BY-SA.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (2)
| Runway | Length | Width | Surface | Lighting | Status |
|---|---|---|---|---|---|
| 16 / 34 | 10,000 ft / 3,048 m | 1000 ft | Water | Unlit | Open |
| 07 / 25 | 2,500 ft / 762 m | 1000 ft | Water | Unlit | Open |
Tall obstacles nearby
| Obstacle | Height AGL | Top (MSL) | Lit |
|---|---|---|---|
| Obstacle | — | 85 ft | — |
Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.
Nearby airports
Great-circle distance and true bearing from Rosario Seaplane Base.
Frequently asked questions
What is the airport code for Rosario Seaplane Base?
Rosario Seaplane Base uses the IATA code RSJ.
Where is Rosario Seaplane Base located?
Rosario Seaplane Base is seaplane base located in Rosario, United States.
How many runways does Rosario Seaplane Base have?
Rosario Seaplane Base has 2 runways, the longest being 10,000 ft / 3,048 m.
What time zone is Rosario Seaplane Base in?
Rosario Seaplane Base is in the America/Los Angeles time zone (UTC-07:00).
What is the magnetic variation at Rosario Seaplane Base?
The magnetic variation (declination) at Rosario Seaplane Base is approximately 15.2° E, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Rosario Seaplane Base?
The nearest airport to Rosario Seaplane Base is Crow Valley Airport (US-1007), about 3.4 nm to the w, followed by Clam Harbor Airport and Orcas Island Airport.
Is the information on this page suitable for flight planning?
No. Rosario Seaplane Base data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.