Deepest lakes & reservoirs in Maryland by maximum depth (ft)
The estimated greatest depth of the water in a lake can be measured at the lake’s normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake’s average depth can be calculated:Water volume ÷ Surface Area = Average Depth
Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth.
You can find many of the the world’s deepest lakes on LakeLubbers. If you sort the list, you will find the (maximum depth of) the shallowest lakes in our database. Note: For some lakes, lake depth data is unknown, so this table may display fewer lakes than the total 8 articles we have published for Maryland lakes.
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Below are lakes within USA > US Mid-Atlantic Region > Maryland > Compared by maximum depth in feet. This list does not represent all lakes in Maryland, only the 8 Maryland lake articles we have published on the LakeLubbers website.
Lake name  |
Max depth in feet |
Lake description |
|---|---|---|
| Savage River Reservoir, MD (Maryland, US Mid-Atlantic Region, USA, Western Maryland) |
151 ft | Fresh, crystal clear mountain water makes Savage River Reservoir a beautiful destination in northwestern Maryland. Located in a canyon of the Savage R… |
| Liberty Reservoir, MD (Central Maryland, Maryland, US Mid-Atlantic Region, USA) |
144 ft | Also known as Liberty Lake Liberty Reservoir, also known as Liberty Lake, is located in the Patapsco region of the Chesapeake Bay watershed within Maryland’s Baltimore suburbs.… |
| Prettyboy Reservoir, MD (Central Maryland, Maryland, US Mid-Atlantic Region, USA) |
130 ft | Prettyboy Reservoir spreads out over 1,500 acres in northern Baltimore County, Maryland. It is named after Prettyboy Creek, which is a located in a se… |
| Deep Creek Lake, MD (Maryland, US Mid-Atlantic Region, USA, Western Maryland) |
75 ft | Deep Creek Lake is the largest inland body of water in Maryland, covering about 3,900 acres in the Allegheny Mountains of western Maryland. Since its… |
| Loch Raven Reservoir, MD (Central Maryland, Maryland, US Mid-Atlantic Region, USA) |
70 ft | The Loch Raven Reservoir is located just a few miles north of Baltimore. Unspoiled and surrounded by forests and hiking trails, it has long provided M… |
| Little Seneca Lake, MD (Capital Region, MD, Maryland, US Mid-Atlantic Region, USA) |
68 ft | Little Seneca Lake, located near Boyds, Maryland, is the focal point of the Black Hill Regional Park and covers nearly 1/3 of its acreage. It lies in… |
| Lake Needwood & Lake Frank (Capital Region, MD, Maryland, US Mid-Atlantic Region, USA) |
26 ft | Also known as Needwood Reservoir, Lake Bernard Frank, Bernard Frank Reservoir Lake Needwood and its little neighbor, Lake Bernard Frank, offer a quiet respite from the busy, noisy metropolitan Washington DC landscape. The little… |