Wayfarrow

Split Rock Lighthouse

Lighthouse · Lake County, Minnesota

Split Rock Lighthouse, Split Rock MN
Split Rock Lighthouse, Split Rock MN · Jim Sorbie / Wikimedia Commons · CC BY 2.0

Split Rock Lighthouse is a lighthouse in Lake County, Minnesota. Minnesota has 9 lighthouses on record at Wayfarrow, 3 of them in Lake County.

It was built in 1910, in the early 20th century, making it the 6th oldest of the 8 in Minnesota with a recorded construction date; the tower stands about 54 feet tall; its light sits 131 feet above the water; the light characteristic is recorded as 0.5-s Flevery 9.5s, with a range of about 22 nautical miles; it guards Lake Superior; it was deactivated in 1969; the structure is built of brick.

Status check, 2026-11: Built 1909–1910 and first lit July 31, 1910. The 54 ft tower sits on a 130 ft cliff, was decommissioned in 1969, and is now a Minnesota Historical Society site and National Historic Landmark. Split Rock Lighthouse is listed on the National Register of Historic Places. It stands at 47.2003° N, 91.3675° W.

Key facts

Current structure built1910
Tower height54 ft
Focal height131 ft
Light characteristic0.5-s Flevery 9.5s
Range22 nautical miles
Deactivated1969
Body of waterLake Superior
Materialbrick
Heritage designationNational Historic Landmark
National RegisterListed
Coordinates47.20028, -91.36750

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Nearby places

Questions

Where is Split Rock Lighthouse?

Split Rock Lighthouse is in Lake County, Minnesota, at 47.2003, -91.3675.

How many lighthouses are in Lake County?

Lake County, Minnesota has 3 lighthouses on record at Wayfarrow.

Sources and licences

Facts marked "approximately" carry an uncertain date in the source. Text on this page is generated from the sources above; no encyclopedia prose is copied. Last updated 2026-11-05.