Snow Caves And Other Shelters
(Page 2 of 6)
Likewise, if you find a site where a drift is sufficiently deep but not firm, you can tromp around the area and poke the powder repeatedly with a stick or your ski polesperhaps also mounding more snow on top and stirring that up a bit—to encourage the mass to harden.
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In any case, it's important to remember that if you're in an avalanche-prone area, you need to be very careful about choosing a site. Always check with rangers for snow condition reports before venturing into the wilds . . . and be aware that the lee—windless—sides of mountains are particularly dangerous, and that new snow on the ground increases the danger of a slide.
CONSTRUCTION
Virtually every book I've read on the subject of snow caving recommends carving a narrow tunnel into a drift or bank, and then hollowing out a larger living area—at the interior end of the shaft—by scooping out the material and transporting it through the burrow to the outside. I've found, however, that the method is very time-consuming . . . and that a digger is likely to get a kink in the back—and snow down the neck—in the process.
Therefore, I've come up with what I believe is a much better technique: First, open a large vertical hole (about four feet on a side, working from "ground" level up) directly into a drift or pile of snow. You can use a lightweight folding shovel—a tool that I think all winter back-country enthusiasts should carry—or, in a pinch, some kind of make-do implement . . . such as a snowshoe, ski, or flat stick.
When the "doorway" is done, go on to excavate your living quarters by digging out a rounded, dome-shaped area (a flat roof will sag and collapse) that's somewhat wider and higher than the entrance itself. The exact dimensions of your abode will, of course, be up to you . . . and will depend upon the number of people you intend to house. Given the right snow conditions, you can construct caves large enough for six or more individuals . . . but a smaller shelter—such as the two—person model shown in Figs. 1 and 2—takes less time to build, tends to be more stable, and is a more appropriate project for beginners.
Once you've hollowed out the cubicle, take some of the loosened snow and pack it up to form a sleeping bench (or two or three) that's 20 inches or more high, a bit wider than a sleeping bag, and as long as its occupant-to-be is tall. If you're building a one-person shelter, you can dig a fairly shallow chamber and position the single platform parallel to the opening. If you're making a two-person grotto like the one in the accompanying illustrations, you'll need to excavate a deeper cavity and place a bed on each side of the doorway.
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