Mount Desert Rock Lighthouse
Near Frenchboro, Maine
Click here for a gallery of Mount Desert Rock Light photos on Shutterfly (prints and gift items available)
Location: About 20 miles south of Mount Desert Island
Coordinates: 43 58 06 N 68 07 42 W
View Mount Desert Rock Lighthouse in a larger map
Active aid to navigation. Property is owned by: College of the Atlantic
Accessibility: The lighthouse is used as a whale research station and is not open to the general public. It is best viewed by boat.
Station established: 1830
Present lighthouse built: 1847
Construction material: Granite
Other buildings still standing: 1893 keeper's house, 1895 boathouse, cistern, storage building
Height of tower: 58 feet
Height of focal plane: 75 feet
Earlier optic: Third-order Fresnel lens (1858)
Present optic: VRB-25 (below)
Characteristic: Flashing white every fifteen seconds
Fog signal: Two blasts every 30 seconds, operating continuously.
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