Montana, the big sky country
Subtitle: 1970 highway map
By: Montana State Highway Commission
Publisher: The Commission
Published: 1970
Place of publication: Helena
Language: eng
Subjects: Roads; Maps
Notes: Title taken from folded cover.

Relief shown by shading.

Insets: Great Falls -- Helena -- Billings -- Butte -- Missoula.

Includes index to counties, cities and towns; points of interest; mileage chart; traffic regulations and safety rules; and broadcasting stations.

Verso: Montana historical and travel information with color photographs.