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| An opaque, plastic 3" x 5" card for avalanche forecasting and advanced snow study. This card has 1 & 2 mm 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, temp., etc. |
