Largest lakes & reservoirs in US Mid-Atlantic Region by shoreline length
The length of the exterior shoreline around a lake is measured at the lake’s normal elevation. The shoreline length can be considerably shorter or longer when lake water levels are lower or higher than normal. A lake with many coves has a much longer shoreline than a lake of similar surface area that is nearly circular in shape.When known, the shoreline miles that we report in our statistics include only the lake’s exterior shoreline, and exclude the shorelines of islands located within a lake’s boundaries. In lakes with many islands, those islands’ combined shorelines may exceed a lake’s exterior shoreline.
You can find many of the world’s longest-shoreline lakes on LakeLubbers. Note: For some lakes, "Longest Shorelines" data is unknown or does not apply, so this table may display fewer lakes than the total 142 articles we have published for US Mid-Atlantic Region lakes.
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Below are lakes within USA > US Mid-Atlantic Region > Compared by longest shoreline length in miles. This list does not represent all lakes in US Mid-Atlantic Region, only the 142 US Mid-Atlantic Region lake articles we have published on the LakeLubbers website.
Lake name | Shoreline length in miles | Lake description |
---|---|---|
Tupper Lake (Adirondacks Region, NY, New York, US Mid-Atlantic Region, USA) |
21 mi | Also known as Big Tupper Lake Big Tupper Lake is a perfect specimen of the natural lakes found in the Adirondack region of upstate New York. The 3,850-acre lake formed from a glaci … |
Lake Placid, NY (Adirondacks Region, NY, New York, US Mid-Atlantic Region, USA) |
20 mi | Set among tall pines and white birches in the gorgeous Adirondack Mountains in upstate New York, Lake Placid is a spring-fed, sparkling 2,173-acre lak … |
Beltzville Lake, PA (Northeastern Mountains Region, PA, Pennsylvania, US Mid-Atlantic Region, USA) |
20 mi | Also known as Beltzville Reservoir The Pennsylvania Pocono Mountains are spectacular for many reasons, and Beltzville Lake is one of them. Located in the southern foothills of these fam … |
Indian Lake, PA (Pennsylvania, Pittsburgh & Countryside Region, PA, US Mid-Atlantic Region, USA) |
20 mi | Indian Lake is a freshwater man-made lake shaped like a horseshoe, located in Somerset County, Pennsylvania. It is part of the state’s Laurel Highland … |
Conesus Lake, NY (Finger Lakes Region, NY, New York, US Mid-Atlantic Region, USA) |
18 mi | Livingston County, New York considers Conesus Lake to be its pride and joy, the jewel of the county. Indeed, this Finger Lake’s original Seneca name m … |
Cowanesque Lake, PA (Pennsylvania, Pennsylvania Wilds Region, US Mid-Atlantic Region, USA) |
17 mi | Peacefully nestled between forested ridges in north central Pennsylvania lies Cowanesque Lake. Located near the New York state line, the name Cowanesq … |
Saranac Lakes, NY (Adirondacks Region, NY, New York, US Mid-Atlantic Region, USA) |
17 mi | Also known as Lower Saranac Lake, Middle Saranac Lake, Upper Saranac Lake New York’s Saranac Lakes — Lower Saranac Lake, Middle Saranac Lake, and Upper Saranac Lake — offer visitors peaceful islands, incredible Adirondack … |
Hemlock Lake, NY (Finger Lakes Region, NY, New York, US Mid-Atlantic Region, USA) |
17 mi | Hemlock Lake, at just 7 miles long and a half mile wide, is one of New York’s smallest Finger Lakes, and one of two reserved for supplying water to th … |
Sleepy Hollow Lake, NY (Catskills Region, NY, New York, US Mid-Atlantic Region, USA) |
17 mi | Sleepy Hollow Lake and the surrounding area proclaim to be the “Best Kept Secret in New York.” Nestled in Greene County between the Hudson River and C … |
Fulton Chain of Lakes, NY (Adirondacks Region, NY, New York, US Mid-Atlantic Region, USA) |
16 mi | Also known as Fulton Lakes, Fulton Chain The Fulton Chain of Lakes is a string of eight sparkling lakes located in the scenic Central Adirondack Mountains of upstate New York. The chain begin … |
Youghiogheny River Lake (Pennsylvania, Pittsburgh & Countryside Region, PA, US Mid-Atlantic Region, USA) |
16 mi | Also known as Yough Lake In the heart of the Laurel Highlands and spanning the Mason-Dixon Line between Pennsylvania and Maryland lays Youghiogheny River Lake. The U.S. Army C … |
Little Seneca Lake, MD (Capital Region, MD, Maryland, US Mid-Atlantic Region, USA) |
16 mi | 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 … |