Utrechtse Heuvelrug is a ridge of hills located in the province of Utrecht, Netherlands. It stretches approximately 40 kilometers and is known for its diverse landscapes, including forests, heathlands, and sand dunes. The area is rich in flora and fauna, making it a popular destination for nature lovers and outdoor activities. The region is also home to several historical sites, including castles and estates that date back to the 17th and 18th centuries. Utrechtse Heuvelrug National Park was established to protect this unique environment and offers various walking and cycling trails for visitors to explore its natural beauty.