Yes Duluth, Minnesota is a major port city on Lake Superior.  This puzzle by Rick Kollath celebrates Duluth's history as a major hub in the North for manufacturing and distribution. 

Rick Kollath is an illustrator and avid outdoors person, rock-climber, mountaineer, and snow sports enthusiast.  He lives and works in his native hometown - Duluth, Minnesota.  With a career spanning more than 30 years illustrating for many notable national retailer and catalog clients, his work is immediately recognizable.

Frost River manufactures heritage products in their historic factory and retail store located in the Lincoln Park "Craft District" of Duluth, Minnesota.  Skilled artisans utilize waxed canvas, premium leather and solid brass hardware to handcraft packs, bags, and luggage that will last for generations and improve with use and age.  Shipping products worldwide from the shores of Lake Superior!