A forest, also referred to as a wood or the woods, is an area with a high density of trees. As with cities, depending on various cultural definitions, what is considered a forest may vary significantly in size and have different classifications according to how and of what the forest is composed. A forest is usually an area filled with trees but any tall densely packed area of vegetation may be considered a forest, even underwater vegetation such as kelp forests, or non-vegetation such as fungi, and bacteria. Tree forests cover approximately 9.4 percent of the Earth’s surface, though they once covered much more . They function as habitats for organisms, hydrologic flow modulators, and soil conservers, constituting one of the most important aspects of the biosphere.
Olympic National Forest, Washington, United States – Inside the Olympic National Park, located the Olympic National Forest. It’s a temperate rainforest and one of the largest, if not the largest, temperate rainforests in the world. It is also the wettest place in the continental United States