The Misbourne is a river located in Buckinghamshire, England. It flows for about 20 miles, starting near Great Missenden and eventually joining the River Colne. The river is known for its picturesque scenery and is a popular spot for walking and nature observation. Historically, the Misbourne has been significant for local communities, providing water for agriculture and industry. Its course includes several small villages, such as Little Missenden and Amersham, which are characterized by charming architecture and rich history. The river's health and flow have been affected by urban development and climate change over the years.