The River Misbourne is a small river located in Buckinghamshire, England. It flows for approximately 10 miles, starting near the village of Misbourne and eventually joining the River Colne. The river is primarily fed by natural springs, which contribute to its flow throughout the year. The Misbourne is known for its picturesque surroundings and is part of the Chiltern Hills area, an area recognized for its natural beauty. The river supports local wildlife and is a habitat for various species of fish and birds, making it an important ecological feature in the region.