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The fundamental question of objective versus subjective criteria in the establishment of regional systems in geography has long been debated. To address this conflict, the peninsular part of western France, known generally as Brittany , was chosen as a case study in regional methodology. The conflict between objectivity and subjectivity in regional analysis is considered and rational limits for the application of regionalizing techniques are suggested by factorial distributions. The physical, historical, cultural, and economic regional characteristics of Brittany and the manner in which these characteristics have set this region apart from the remainder of France throughout history are analyzed as well as how the range of the characteristics of Brittany commend themselves for consideration as significant regional determinants. A Breton Index is developed which applies various criteria to every canton in Brittany. The derivation and application of this Breton Index make a compelling case for the utilization of subjective criteria as the primary determinate for regional delimitation.

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James R. McDonald Ph.D. is Professor Emeritus of Geography at Eastern Michigan University. He has published books, text books and numerous articles on regional geography with a focus on France. He has held grants from the National Science Foundation, the National Geographic Society and lectured on cruises for the American Geographical Society.

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