trailmarkNational Parks passport

U.S. NATIONAL PARK · EST. 2004

Great Sand Dunes

CO

The tallest dunes in North America banked against the Sangre de Cristo range.

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Trail series Great Sand Dunes counts toward 2 named sets on Trailmark: The Colorado Four and This Century. Finish a set and it stamps complete on your map.

Great Sand Dunes is one of the 63 U.S. National Parks — first designated in 2004, in CO. Been there? Tap it onto your Trailmark map and watch your collection, progress ring and percentile grow. Free, for fun — your map saves and keeps growing trip after trip.