Seasonal layers of snow at 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 shows the season's layers of snow and discusses the insulating effect of snow. Process Observed: Snow DepthSnow Insulation Date Process Observed: Monday, March 8, 2010 Galleries: Sam Charley Slough A Gallery