Forest fire is a large, uncontrolled fire that burns trees and wild land. It can spread across forests, grasslands, or mountain areas. These fires occur in many parts of the world.

Some forest fires begin from lightning strikes, while others start from human activity such as campfires or machinery. Regions like Australia, California, and the Mediterranean often experience seasonal fires during hot, dry periods. Smoke, flames, and ash can cover wide areas.

Forest fires are part of natural environmental systems. They occur in different climates and landscapes.