Chatfield Reservoir is a large body of water located in Chatfield State Park in Colorado. It was created by damming the South Platte River and serves multiple purposes, including water storage, flood control, and recreational activities. The reservoir covers approximately 1,500 acres and has a maximum depth of around 50 feet. Visitors to Chatfield Reservoir can enjoy various outdoor activities such as fishing, boating, and hiking. The surrounding park features trails, picnic areas, and wildlife viewing opportunities, making it a popular destination for families and nature enthusiasts alike.