Dickinson County Spine Trail   This trail is 14 miles long, starting at Milford, IA, travelling north through Arnolds Park, Okoboji, Spirit Lake, ending at Orleans, IA. Built on the old railroad bed. Scenery is past lakes, through woods and state parks, and nearby resort amenities. Correction to winter temps: highs in teens to 30's, lows from teens to below zero. Says Barbara Woodley