(Woodland, WA)  --  An autopsy is scheduled for a 17-year-old boy, who died while trying to swim across the Lewis River near Woodland.  Cowlitz County officials say the teen was swimming with friends when he began struggling and complained of being cold around two p.m. yesterday.  The boy disappeared beneath the surface shortly afterward, and hours passed before search crews were able to find his body.  His name hasn't been released.