The Swamp Fox was first manufactured by Donelson, Inc in Ames, Iowa. It was later sold under Royco Inc in Union, Iowa. Swamp Fox was one of the widest 6×6’s ever built with similar dimensions to Newt the Bold. Because of these dimensions, the tires sit higher in the water, making it one of the fastest swimming amphibious ATV’s ever produced.
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Swamp Fox Inquiry Letter – April 1973
Swamp Fox Brochure Super -1976