Brittany (historical province) in the context of "Upper Brittany"

Upper Brittany (French: Haute-Bretagne; Breton: Breizh-Uhel; Gallo: Haùtt-Bertaèyn) is the eastern part of Brittany, France, which is historically associated with the Gallo language. The name is in counterpoint to Lower Brittany, the western part of the ancient province and present-day region, where the Breton language has traditionally been spoken. However, there is no certainty as to exactly where the line between 'Upper' and 'Lower' Brittany falls.

In many regards, Upper Brittany is dominated by the industrial and cathedral city of Rennes, seat of the University of Rennes 1 and the University of Rennes 2.