The number of miles of groomed cross-country ski trails in Duluth is given as 24 in this 1993 activity book page. The Duluth Cross-Country Ski Club reports the modern-day figure as more than 50 kilometers, or roughly 30 miles.

Use the link below for a printable PDF for your coloring and drawing pleasure.
Duluth You & Me: Cross-country Trails

Follow the Duluth You & Me subject tag to see additional pages. For background on the book see the original post on the topic.