What are the 3 mountain ranges is Oregon?

The three main mountain ranges in Oregon, USA, are:

1. Cascade Range: The Cascade Range is a major mountain range in western North America, extending from British Columbia in Canada to northern California in the United States. In Oregon, the Cascades form a prominent part of the state's geography and include several large volcanic peaks such as Mount Hood, Mount Jefferson, and the Three Sisters.

2. Coast Range: The Coast Range is a mountain range located along the Pacific coast of Oregon. It stretches from the Columbia River in the north to the Umpqua River in the south. The range is characterized by dense forests, rugged cliffs, and scenic viewpoints overlooking the Pacific Ocean.

3. Klamath Mountains: The Klamath Mountains are a mountain range located in southwestern Oregon and northwestern California. They are formed by a complex geological history involving the碰撞of several tectonic plates. The Klamath Mountains are known for their unique flora and fauna, including several endangered species.