Mosquito Island House
Mosquito Island House, Stone house in St. George, United States.
The Mosquito Island House features a granite block construction with a gabled roof and two dormers on its north-facing side.
Built around 1780, this Cape style residence represents one of the earliest examples of granite block construction methods in the United States.
The National Register of Historic Places designated this property in 1983, recognizing its importance to American architectural heritage.
The house stands on private property on Mosquito Island, which measures 220 acres and requires boat transportation to access.
The granite blocks used in construction were extracted using techniques that stopped being common after 1750, making this structure particularly notable.
Location: St. George
Inception: 1780
GPS coordinates: 43.92250,-69.22278
Latest update: September 23, 2025 14:25
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