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Joe, Derek, and Brandon arrive ready to
begin the building project. |
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The first step is to find a nice large
snowfield to serve as a quarry. Then, using a ski, the boys scribed
a circle twelve feet in diameter. |
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The boys then pack down the snow base
inside the circle. |
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Now comes the job of cutting snow
blocks. Each block is about two feet long, by one foot wide, by
about one foot high. Flat blade shovels, sheets of lexan, and snow
saws are used to aid the cutting. |
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The guys lay down the base ring.
Once the first ring is set, the guys use the ski (with someone holding the
tip in the center of the ring) to bevel the tops of the blocks, and then
to start a spiral rise on the blocks. Subsequent blocks are then
added to the spiral, and the ski is used on each ring to bevel the tops of
the blocks. The ski helps ensure that the right angle is made so the
blocks will curve inward. This keeps your igloo from becoming unmanageably
high. |
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Henry finds the best snow for blocks
about five feet down. This hole will later serve as the sunken entry
way for the igloo, acting as a cold sink so that heat stays in the igloo. |
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Ray H. and Eric dug a long trench, then
used angled blocks over the top. They then dug down deeper and wider
below the snow line to make a great trench shelter. |
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Bob and Adam used the snow mound
technique, where snow was piled up and settled, and then a cave was dug
inward and downwards, and the snow dome hollowed out. |
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Greg and Alex inside the igloo.
The igloo ended up just over six feet high by about ten feet in
diameter. Five boys or three adults could easily sleep in this. |
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The igloo showing the sunken entryway
below the snowline. |
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Ray H emerges from his trench. |
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And voila, another quality snow shelter
from Ronco. |