Liberty Reservoir is a large water supply reservoir located in Baltimore County, Maryland. It was created in the 1950s by damming the Liberty River and serves as a crucial source of drinking water for the surrounding communities. The reservoir covers approximately 3,100 acres and has a capacity of about 23 billion gallons. The area around Liberty Reservoir is also popular for recreational activities, including fishing, hiking, and birdwatching. The Baltimore City Department of Public Works manages the reservoir, ensuring water quality and providing access to the public for various outdoor pursuits while maintaining environmental protection.