Sapperton is a neighbourhood of the City of New Westminster, British Columbia

British Columbia

British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...

, Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, located in the northeastern end of that city and up to its boundaries with the City of Coquitlam and City of Burnaby. Located on the slope above the Fraser River

Fraser River

The Fraser River is the longest river within British Columbia, Canada, rising at Fraser Pass near Mount Robson in the Rocky Mountains and flowing for , into the Strait of Georgia at the city of Vancouver. It is the tenth longest river in Canada...

 and focussed on Brunette Avenue and Columbia Avenue, and northeast of the former British Columbia Penitentiary, the neighbourhood was the location of the barracks and other housing for the Royal Engineers, Columbia Detachment

Royal Engineers, Columbia detachment

Columbia detachment of the Royal Engineers was a British military contingent that played a major role in the settlement, development and security of the new British Columbia. Sent at the request of Governor James Douglas to help maintain order during the Fraser Canyon Gold Rush, the detachment was...

, who were known as "sappers", hence the name.