6-8-12 (Maple Plain, MN) --  The search continues for a missing boater from Long Lake.  Three Rivers Park Police found a boat adrift late last night on Lake Independence west of the Twin Cities.  Officials say the missing man is in his 60s and went out fishing Thursday morning and did not return home.  Sonar searches will continue as well as surface, shoreline and ground searches.  Anyone with information should contact law enforcement.