So, let's begin.
First of all, choose a place. It is best considered a forest or clearing marked by snow.
How will we do it. Stock up on gunpowder, iron shovels and friends in advance.
Process.
Mark up a place even when there is not much snow. Agree with everyone who will do this.
When approximately 70-200 cm of snow has fallen, proceed
1. Make a mound where you will make a move. Dig a passage in this mound. If you come across ice, strong snow, use gunpowder, sodium, potassium and other alkali metals that explode on contact with water will also go well in its place. Dig and make a mound until the ceiling height is 1 meter.
2. If the length of your tunnel is about 15 meters, and the ceiling thickness is 20-50 cm, it will not be superfluous to strengthen this design. You will need: thick sticks, boards, bars and nails (you can also screws). First of all, we strengthen the ceiling with these materials, with boards we fix the center of the ceiling and then with the help of their own wall. Making windows is not the best option. Because of this, the design may collapse.
3. All this must be well equipped. It will be good to use electricity for lighting. We take 3 batteries 9V we take in the store the smallest light bulbs and forth. There are dozens of such bulbs. You can make the most primitive alcohol burners, bring them to this cave and start heating. But do not rely on large temperature differences, however if you make a large thickness of snow (about 20-50 cm) from the outside, you can hope for a temperature increase of 5-10 degrees.
4. Well, finally, it's time to find out when everything needs to be cleaned if you are in a moderate zone, by the end of February or early March, you need to take out the whole electronics, by the beginning of April, remove the supports. Keep all inventory until next winter.
That's my whole article like, I think you were interested, bye.