Located in Colmar Manor Community Park and a part of the Anacostia River Stream Valley Park, the Dueling Creek Natural Area has a chilling history. During the first half of the 19th century, it was the site of over 50 duels was known as "The Dark and Bloody Grounds." Today, the 60-acre park is home to beavers, bluebirds, ducks, herons, and turtles and includes wetland ponds, field, and forested lowlands. For additional information about Dueling Creek Natural Area, contact staff at Mt. Rainier Nature/Recreation Center at the number above.