The Bistritsa River is a river located in Bulgaria, primarily flowing through the Vitosha Mountain region. It is known for its clear waters and picturesque surroundings, making it a popular spot for nature lovers and hikers. The river eventually joins the Iskar River, contributing to the larger river system in the area. The Bistritsa River is approximately 20 kilometers long and plays a vital role in the local ecosystem. It supports various wildlife and plant species, providing a habitat for fish and other aquatic organisms. The river's banks are often lined with lush vegetation, enhancing the natural beauty of the landscape.