How a weekend mountain biking tour to Duluth and Cuyuna changed my summer Minnesota offers some great trails barely removed from the steel and concrete of the modern day city — close enough to access easily and find yourself within the wonders of nature. 6:54 pm, Jun. 3, 2021 × Mountain biking trails offer picturesque views throughout Minnesota's Cuyuna Country State Recreation Area. Photo by Steve Wagner / Forum News Service DULUTH, Minn. -- With just a wisp of breeze and magnificent blue skies overhead, a few dozen pedal strokes led us to the wide-bermed switchbacks of the trail leading to Duluth’s Observation Hill on the opening day of the recent holiday weekend.