Tree throw is when a big tree falls over in the forest and the roots come out of the ground, creating a hole or pit. This happens because the tree was either very old or weak, or there was a big storm or wind that caused it to fall.
When the roots come out of the ground, they can sometimes pull up other nearby trees with them. This is called uprooting.
The hole or pit that is left after the tree falls is called a pit mound. This is important because it creates a new habitat for animals and plants to live in. Sometimes the hole can fill with water, becoming a small pond or wetland.
Tree throw can be dangerous for people walking in the forest because the falling tree and uprooted trees can cause injury. It's always important to stay alert when in the forest, especially during or after strong winds or storms, and to watch out for fallen trees and uprooted trees.