Definition
Deep Creek Lake is a man‑made reservoir located in Garrett County in western Maryland, United States. It is the largest inland body of water in the state and serves primarily for recreation, water supply, and hydro‑electric generation.
Overview
The lake was created in 1925 by the construction of the Deep Creek Dam on Deep Creek, a tributary of the Youghiogheny River within the Potomac River watershed. Covering roughly 3,900 acres (about 15.6 km²), the reservoir stretches for approximately 12 miles (19 km) in length. The surrounding area includes the town of Deep Creek Lake, Deep Creek Lake State Park, and the Wisp Ski Resort, making it a prominent year‑round tourist destination. The Maryland Department of Natural Resources manages the lake and its surrounding public lands.
Etymology / Origin
The name “Deep Creek Lake” derives directly from the watercourse that was dammed to form the reservoir—Deep Creek. The descriptor “deep” is a straightforward English adjective applied to the creek, likely reflecting its relative depth compared to nearby streams. No alternative historical names for the reservoir are documented.
Characteristics
- Geography: Situated in the Appalachian Mountains at an elevation of roughly 2,720 feet (829 m) above sea level.
- Dimensions: Surface area ~ 3,900 acres (≈15.6 km²); maximum length about 12 miles (19 km).
- Depth: Maximum recorded depth is approximately 72 feet (22 m).
- Hydrology: Inflow primarily from Deep Creek; outflow continues via Deep Creek to the Youghiogheny River. The reservoir’s water level is regulated by the Deep Creek Dam, which also houses hydro‑electric turbines.
- Ecology: The lake supports a variety of freshwater fish species, including largemouth bass, smallmouth bass, trout, and walleye, as well as typical Appalachian shoreline vegetation such as mixed hardwood forests.
- Recreation: Activities include boating, fishing, swimming, ice‑fishing, and water‑sports in summer; winter sports are facilitated at adjacent ski facilities. The surrounding state park provides hiking trails, campgrounds, and wildlife observation opportunities.
- Management: Operated under a partnership between the Maryland Department of Natural Resources, private concessionaires, and local municipalities. Water quality monitoring and shoreline development regulations are in place to preserve the lake’s recreational value and ecological health.
Related Topics
- Garrett County, Maryland
- Deep Creek Lake State Park
- Wisp Ski Resort
- Potomac River watershed
- Youghiogheny River
- Maryland Department of Natural Resources
- Reservoirs and hydro‑electric dams in the United States
All information presented is drawn from publicly available governmental and geographic sources as of 2026.