Home Maps Resources Calendar About
Resources Calendar About
Ile Ste-Rosalie (Crab Island), ON  Lighthouse destroyed.   

Select a photograph to view a photo gallery

Photo Gallery

Photo Gallery

Photo Gallery

See our full List of Lighthouses in Ontario Canada

Ile Ste-Rosalie (Crab Island) Lighthouse

Ile Ste-Rosalie, also known as Ile Rosalie or Crab Island, is a small island situated on the Ontario side of Ottawa River offshore from Fairmont Le Château Montebello.

In 1912, Thomas Weir oversaw the erection of a wooden tower and the installation of a sixth-order dioptric illuminating apparatus in its lantern room to mark the island. The cost of the lighthouse was $1289.73. Alphonse Rosalie was appointed the first keeper of the lighthouse on October 29, 1912 at an annual salary of roughly $220, and he served as keeper until his death in 1936.

After vandals destroyed the island’s wooden lighthouse in 1978, a skeletal tower was used to exhibit a light from the island until 1999, when a buoy was placed nearby. In 2021, Île Ste-Rosalie light buoy H311 was anchored just north of the island and exhibited a flashing green light every four seconds.

Keepers: Alphonse Seguin (1912 – 1936), Colin Campbell (1938 – 1966).


  1. Annual Report of the Department of Marine, various years.

Copyright © 2001- Lighthousefriends.com
Pictures on this page copyright Canadian Coast Guard, used by permission.
email Kraig