Grindstone Lake Seaplane Base
Daylight today(Sep 2, 2026, local time)
About 13h 16m 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 Grindstone Lake Seaplane Base
Grindstone Lake Seaplane Base is a seaplane base in Sandstone, United States. It sits at an elevation of 1,025 ft (312 m) and has 1 runway, the longest 11,000 ft / 3,353 m. It observes America/Chicago local time. The nearest airport is Bush Field (MN57), about 5.9 nm to the s.
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.
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)
| Runway | Length | Width | Surface | Lighting | Status |
|---|---|---|---|---|---|
| 01 / 19 | 11,000 ft / 3,353 m | 3000 ft | Water | Unlit | Open |
Nearby airports
Great-circle distance and true bearing from Grindstone Lake Seaplane Base.
Frequently asked questions
Where is Grindstone Lake Seaplane Base located?
Grindstone Lake Seaplane Base is seaplane base located in Sandstone, United States, at an elevation of 1,025 ft (312 m).
How many runways does Grindstone Lake Seaplane Base have?
Grindstone Lake Seaplane Base has 1 runway, the longest being 11,000 ft / 3,353 m.
What time zone is Grindstone Lake Seaplane Base in?
Grindstone Lake Seaplane Base is in the America/Chicago time zone (UTC-05:00).
What is the magnetic variation at Grindstone Lake Seaplane Base?
The magnetic variation (declination) at Grindstone Lake Seaplane Base is approximately 0.4° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Grindstone Lake Seaplane Base?
The nearest airport to Grindstone Lake Seaplane Base is Bush Field (MN57), about 5.9 nm to the s, followed by Field of Dreams Airport and Zenith Landing Airport.
Is the information on this page suitable for flight planning?
No. Grindstone Lake Seaplane Base data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.