Eagle Creek Reservoir is a large body of water located in Indianapolis, Indiana. It covers approximately 1,400 acres and serves as a popular destination for outdoor activities such as fishing, boating, and hiking. The reservoir is part of the Eagle Creek Park, which is one of the largest city parks in the United States. The reservoir was created in the 1960s to provide water supply and flood control for the surrounding area. It is home to various wildlife, including birds and fish, making it an ideal spot for nature enthusiasts. The park surrounding the reservoir also features picnic areas and trails for visitors to enjoy.