British Columbia (commonly abbreviated as BC) is the westernmost province of Canada. Situated between the Pacific Ocean and the Rocky Mountains, the province has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, forests, lakes, mountains, inland deserts and grassy plains. British Columbia borders the province of Alberta to the east; the territories of Yukon to the north; the Northwest Territories to the northeast; the US states of Washington, Idaho and Montana to the south; and Alaska to the northwest. With an estimated population of over 5.5 million as of 2023, it is Canada's third-most populous province. The capital of British Columbia is Victoria, while the province's largest city is Vancouver.