Mount St. Helena is a prominent peak located in California, specifically within the Mayacamas Mountains. It rises to an elevation of 4,342 feet (1,326 meters) and is known for its stunning views of the surrounding landscape, including the Napa Valley and San Francisco Bay Area. The mountain is part of the Robert Louis Stevenson State Park, which offers various hiking trails for outdoor enthusiasts. The area around Mount St. Helena is rich in biodiversity, featuring a mix of forests, grasslands, and rocky outcrops. It is home to various plant and animal species, making it a popular destination for nature lovers and hikers. The peak is also significant for its geological history, formed by volcanic activity millions of years ago.