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In 2008, there were 79,552 new snowmobiles sold in the U.S., and 50,556 new snowmobiles sold in Canada. The economic impact of snowmobiling is $29.6 billion annually, and the average age of a snowmobile owner is 44 years old, according to industry statistics.
To see trail options that include Canada - visit Trailsource, an online guide. (Premium services require a subscription; be sure to check out the topographical maps.)
For state forests in Connecticut see all the details on the Department of Environmental Protection site.