You searched for: Place At edge of Houdek Creek near springs. Just east of observation deck, at backslope of eastern-most dune formation, Houdek Dunes Natural Area. 4 miles north of Leland. Remove constraint Place: At edge of Houdek Creek near springs. Just east of observation deck, at backslope of eastern-most dune formation, Houdek Dunes Natural Area. 4 miles north of Leland.