Igloo Structure Diagram - Traditional Inuit Snow Shelter Design #2271947 (License: Personal Use)

This diagram illustrates a classic Inuit-built igloo, constructed from precisely cut snow blocks arranged in a self-supporting spiral dome. The entrance features a low, tunnel-like passage that traps cold air below while warm air rises into the main chamber, enhancing thermal efficiency. A small raised platform inside serves as sleeping area, leveraging natural convection for comfort.

Used on educational pages about Arctic survival, indigenous architecture, or winter camping guides; matches user intent to understand igloo engineering, history, or construction techniques.