Provincial Electoral District

An electoral district in Canada, also known as a "constituency" or a "riding", is a geographical constituency upon which Canada's representative democracy is based. It is officially known in Canadian French as a circonscription, but frequently called a comté (county).

Each federal electoral district returns one Member of Parliament (MP) to the Canadian House of Commons; each provincial or territorial electoral district returns one representative — called, depending on the province or territory, Member of the Legislative Assembly (MLA), Member of the National Assembly (MNA), Member of Provincial Parliament (MPP) or Member of the House of Assembly (MHA) — to the provincial or territorial legislature.

While electoral districts in Canada are now exclusively single-member districts, multiple-member districts have been used at the federal and provincial levels. Alberta has had a few districts that returned from two to seven members: see Calgary, Edmonton and Medicine Hat. British Columbia had a mix of multiple-member districts and single-member districts until the 1991 election, and Prince Edward Island had dual-member districts until the 1996 election.

...
Wikipedia