Newest reservoirs in Pennsylvania
The year that a reservoir was first filled to the reservoir’s normal elevation – or the year that a natural lake was first dammed – is the determining factor in the age of the body of water. A large reservoir can take more than a year to fill after its dam is first closed. You can find many of the the world’s newest reservoirs on LakeLubbers in the comparison table below. Many of the world’s oldest reservoirs appear on the last page of that list. Note: For some lakes, the completion year data is unknown, so you may see fewer lakes than the total 40 articles we have published for Pennsylvania lakes.Thinking about booking a Pennsylvania lake vacation home rental, cabin or hotel?
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Below are lakes within USA > US Mid-Atlantic Region > Pennsylvania > Compared by newest (youngest) reservoirs and the year it was completed. This list does not represent all lakes in Pennsylvania, only the 40 Pennsylvania lake articles we have published on the LakeLubbers website.
Lake name  |
Completion year |
Lake description |
|---|---|---|
| Lake Stoneycreek, PA (Pennsylvania, Pittsburgh & Countryside Region, PA, US Mid-Atlantic Region, USA) |
1960 | Tucked away in the Allegheny Mountains of south west Pennsylvania, Lake Stoneycreek is a private mountain jewel. Close enough to enjoy everything the … |
| Pinchot Lake (Pennsylvania, Pennsylvania Dutch Country Region, US Mid-Atlantic Region, USA) |
1959 | Also known as Pinchot Reservoir, Gifford Pinchot State Park, Old Conewago Lake Only 20 miles south of Harrisburg, in Pennsylvania Dutch Country, 340-acre Pinchot Lake forms a recreational oasis. The reservoir was built in 1959 to … |
| Treasure Lake (Pennsylvania, Pennsylvania Wilds Region, US Mid-Atlantic Region, USA) |
1958 | Also known as Lake Rene The Pennsylvania Wilds Region is not a place you would expect to find a lake called Treasure Lake. Neither would you expect Bimini Lake or Trinidad Be … |
| Big Boulder Lake, PA (Northeastern Mountains Region, PA, Pennsylvania, US Mid-Atlantic Region, USA) |
1957 | In winter visitors to Big Boulder Lake can look across the frozen water to the ski slopes beyond. In spring and summer mountain laurel dots the shore, … |
| East Branch Clarion River Lake, PA (Pennsylvania, Pennsylvania Wilds Region, US Mid-Atlantic Region, USA) |
1952 | Also known as East Branch Lake, East Branch Reservoir East Branch Clarion River Lake, also known as East Branch Lake, is aptly named: it was created by the United States Army Corps of Engineers in 1952 by … |
| Youghiogheny River Lake (Pennsylvania, Pittsburgh & Countryside Region, PA, US Mid-Atlantic Region, USA) |
1943 | 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 … |
| Pymatuning Lake, PA/OH (Great Lakes Region, PA, Northeast Ohio, Ohio, Pennsylvania, US Mid-Atlantic Region, US Midwest Region, USA) |
1934 | Also known as Pymatuning Reservoir Pymatuning Lake, located in northwestern Pennsylvania and spilling over into northeastern Ohio, is a lake of superlatives: Clocking in at 17,088 acres … |
| Lake Wallenpaupack, PA (Northeastern Mountains Region, PA, Pennsylvania, US Mid-Atlantic Region, USA) |
1927 | Lake Wallenpaupack is a prime recreation destination in northeast Pennsylvania’s Pocono Mountains region, nestled among the counties of Hawley, Pike, … |
| Lake Naomi, PA (Northeastern Mountains Region, PA, Pennsylvania, US Mid-Atlantic Region, USA) |
1895 | Lake Naomi, located in the Pocono Mountains of northeastern Pennsylvania, offers residents and visitors alike four seasons of recreation. During every … |
| Pocono Lake, PA (Northeastern Mountains Region, PA, Pennsylvania, US Mid-Atlantic Region, USA) |
1867 | The majestic Pocono Mountains set the backdrop for the lake that shares its name, Pocono Lake. The manmade Pocono Lake is located in the Northeastern … |