Courtland Nelson

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ADVANCE FOR MONDAY APRIL 7 - In this March 31, 2014 photo Courtland Nelson, director of the Parks and Trails Division of the Minnesota Natural Resources, sits in his office at DNR headquarters in St. Paul, Minn. Nelson is retiring April 21 after a decade in the position. He said the availability of extra sales tax money under the 2008 Legacy Amendment is a major reason why he thinks the state’s parks and trails system is in better shape now than when took the job in 2004. (AP Photo/Steve Karnowski)