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More than just a simple grid snow card, the Brooks-Range Snow Crystal Card is recommended by the AIARE and designed to aid professionals with snow study, slope measurement, and snow stability tests. Etched with a fine grid, vital snow-study information, and sized to fit in a thigh pocket, this metal card fits easily in your field book and withstands the torture of backcountry travel season after season.

  • 1mm, 2mm, and 3mm grids on both sides are laser-etched for precision, so you can get the most accurate snow-grain sizing
  • Anondized flat black surface offers a degree of relief, minimal heat conduction (slows melting for easier observation) that keeps snow grains in place and makes visual identification easier
  • Dimensions and nomenclature for Rutschbloc and compression tests are etched on the back, and snow crystal terminology on the front
  • An attached string and weight allow you to use this card as a inclinometer with one-degree of resolution for accuracy
  • Designed for avalanche professionals and serious backcountry travelers, this card holds the endorsement of the AIARE (American Institute for Avalanche Research and Education)
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  • Familiarity: I've used it several times

you'll get it when you use this thing. It's like back in high school when you were allowed to cram as much stuff as you could onto an index card for a test. I'm surprised they didn't try to use all six sides of it.