The St. Roch was a Royal Canadian Mounted Policeschooner, the first ship to completely circumnavigate North America, and the second sailing vessel to complete a voyage through the Northwest Passage. (It was the first ship to complete the Northwest Passage in the direction west to east, going the same route that Amundsen on the sailing vessel Gjøa went east to west, 38 years earlier.)
1929-1939 - supplied and patrolled Canada's Arctic
1940-1942 - became first vessel to complete a voyage through the Northwest Passage in a west to east direction
1944 - became first vessel to make a return trip through the Northwest Passage, through the more northerly route considered the true north west passage, and also the first to navigate the passage in a single season
1962 - designated a Canadian National Historic Site at the Vancouver Maritime Museum
Construction
Onboard the St. Roch at the Vancouver Maritime Museum
The St. Roch was made primarily of thick Douglas-fir, with very hard AustralianEucalyptus "iron bark" on the outside, and an interior hull reinforced with heavy beams to withstand ice pressure during her Arctic duties. Her length was 31.78 metres (104.25 feet). The St. Roch was designed by Tom Hallidie and was based on Roald Amundsen's ship the Maud2
Thompson, John Beswarick. "The more northerly route : a photographic study of the 1944 voyage of the St. Roch through the Northwest Passage" (Ottawa, ON, Canada, Parks Canada. 1974)