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An opaque, plastic 3" x 5" card for avalanche forecasting and advanced snow study. 1 & 2mm grids for identifying grain types within the snowpack Back of the card is a quick description of how to dig a hasty pit & definitions of the two main types of snow: ET & TG. A necessity for profiling snow pack relative to grain type, hardness, temperature, etc. UPC: 000194536323
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