Thin ice near point of island at lower end of Luke's Slough A dangerous place on the Tanana River near the point of the island at the lower end of Luke's Slough caused by overflow and re-freezing of recently open water causing thin ice. Process Observed: OverflowOpen Water (Refrozen)Thin Ice Date Process Observed: Monday, December 17, 2007 Galleries: Point of island at lower end of Luke's Slough Gallery