Observing layers of ice and water in Sam Charley Slough No flash player has been set up. Please select a player to play Flash videos. Video not playing? Update your browser or download the video clip Matthew Sturm chips a hole in the ice in Sam Charley Slough to observe the ice and water layer, and discusses candle ice with Dave Norton. Process Observed: Snow DepthIce Layers Date Process Observed: Monday, March 8, 2010 Galleries: Sam Charley Slough A Gallery