About

Round Island, located in the Thousand Islands region along the Canada-US border, is a distinctive part of the United States, specifically within the jurisdiction of Clayton, New York. Nestled in Jefferson County, this island is positioned northeast, downriver from the town of Clayton, making it a notable feature in the scenic landscape of the St. Lawrence River.

Historically, Round Island is significant for being home to the Frontenac Hotel, a landmark that once stood as a testament to the island’s allure. The island, sometimes referred to informally as “Frontenac,” holds a special place in the local heritage. Its coordinates, 44°15’21″N 76°03’29″W, place it firmly within the two-minute box of 44°16′ x 76°02′, delineating its precise location in this picturesque archipelago.

Island or Feature Name
Round Island [2]

Nationality
US

Centroid Lat/Long
441521N 0760329W

Two-Minute Box
44^16′ x 76^02′

Location and description
Significant for Frontenac Hotel, northeast (downriver) of Clayton, NY

Former, informal, or alternate names
“Frontenac”

Municipality
Clayton

County
Jefferson

Province / State
NY

Ports?

Book refs

1000islands.co ID #
1024

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Data source.