Mount Haruna is an active stratovolcano located in Gunma Prefecture, Japan. It stands at an elevation of 1,449 meters (4,757 feet) and is part of the Kanto mountain range. The mountain is known for its scenic beauty and is surrounded by lush forests and a caldera lake called Lake Haruna. The volcano last erupted in 1663, and today, it is a popular destination for hiking and outdoor activities. Visitors can enjoy panoramic views from the summit and explore the surrounding area, which includes hot springs and various recreational facilities.