A snow shelter is a structure built to provide protection from harsh winter conditions, particularly in snowy environments. These shelters can be made from compacted snow, ice blocks, or other materials found in snowy areas. Common types include quinzhee, which is a hollowed-out mound of snow, and igloo, a dome-shaped structure made from ice blocks. Snow shelters are essential for outdoor activities like backcountry skiing or winter camping, as they offer warmth and safety from wind and cold temperatures. Proper construction and insulation are crucial to ensure the shelter remains stable and retains heat, making it a vital skill for winter survival.