Lassen Peak is a prominent volcano located in Lassen Volcanic National Park in northern California. It stands at an elevation of 10,457 feet, making it one of the highest peaks in the Cascade Range. The peak is known for its geothermal features, including hot springs and fumaroles, which are openings in the Earth's crust that emit steam and gases. The last major eruption of Lassen Peak occurred between 1914 and 1921, making it one of the most active volcanoes in the United States during that time. Today, it attracts hikers and nature enthusiasts, offering stunning views and diverse wildlife in its surrounding landscape.