Brush for shelters may not be securable, snow may not be deep enough for caves nor sufficiently compacted for igloos, time may be needed for touring rather than for constructing shelters out of locally available materials. Any or all of these causes warrants the carrying of some sort of a tent.
Tent Requirements
No single type of tent can truly be described as best. Each has distinct advantages. The small, two- to three-man tent with a tapered floor plan and sloping ridge is the most popular model. There are also the tried and proved mountaineering tents, such as the Mead, Logan, and Whymper.
Design of tents.—Whatever model is selected, certain factors are important: