A wonderfull and easy ride arround lost creek lake, 90% is gravel singletrack, between state park and harbour is a short stretch of paved singletrack. When we where there the gate to ride over the damm was open, if it's closed you have to detour at the base of the dam.
Just follow the shoreline of lost creek lake
http://www.singletracks.com/item.php?c=1&i=6471