Home of Banff National Park

ALBERTA

This Canadian province shares its name with a city known as the "Gateway to the Rockies" and is bordered by British Columbia to the west.

This clue points to Alberta, a Canadian province where Banff National Park is located. Banff is one of Canada’s most famous national parks, known for its stunning Rocky Mountain landscapes, so the answer is simply the name of the province that contains it. No wordplay here—just a straightforward geography reference.