The Inuit people use the word “igloo” to mean any type of house, but we usually think of igloos as fashioned from snow. These are rarely built by the Inuits these days, but references to them still abound.
Try your hand at constructing a shelter made from bricks of packed snow. The Inuits actually cut their blocks from solidly packed snow, but you probably don’t have that kind where you live. Make your “bricks” using a mold such as a bread pan or a heavy plastic container.
Wet snow works best, but dry snow can be moistened with water to help bind it together. Make a sturdy structure by overlapping the bricks and gradually doming the top, or simply by building straight walls and anchoring a tarpaulin over the top as a roof.
Cave-like openings can be carved out of piled-up snow, perhaps where snow has been pushed into a heap by plows (but take care that you are never in the cave on days when the plows are out, and keep clear of heaps that cars may drive through.) An older, well-compacted pile works best, as it will hold its shape better when you scoop out the inside.
[Image: Courtesy of Flickr user mermaid_shells]