Newest reservoirs in Pennsylvania
This is a comparison for lakes within USA > Mid-Atlantic > Pennsylvania > - Compared by Newest (Youngest) Reservoirs and the year it was completed.Note: For some lakes, age data is unknown or does not apply, so this table may display fewer lakes than the total 40 articles we have published for Pennsylvania lakes.
Search results: Sort lakes by completion year
Lake name ![]() |
Completion year ![]() |
Lake description |
---|---|---|
Cowanesque Lake (Mid-Atlantic, Pennsylvania, Pennsylvania Wilds, USA) |
1990 | Peacefully nestled between forested ridges in north central Pennsylvania lies Cowanesque Lake. Located near the New York state line, the name Cowanesq… |
Beaverdam Reservoir (Allegheny Mountains & Valleys, Mid-Atlantic, Pennsylvania, USA) |
1974 | Also known as Beaverdam Run Reservoir Tucked away in rural Cambria County, in Pennsylvania’s Allegheny Mountains and Valleys region, Beaverdam Reservoir provides a welcome natural respite… |
Raystown Lake (Allegheny Mountains & Valleys, Mid-Atlantic, Pennsylvania, USA) |
1973 | Raystown Lake, at 8,300 acres, is the largest lake located entirely within Pennsylvania’s borders. The lake is nestled in the southern Allegheny Mount… |
Lake Nockamixon (Mid-Atlantic, Pennsylvania, Philadelphia & Countryside, USA) |
1973 | Lake Nockamixon, located in the 5,283 acre Nockamixon State Park, is located in southeastern Pennsylvania’s Bucks County. The 1,450 acre reservoir is… |
Lake Wilhelm (Great Lakes, Mid-Atlantic, Pennsylvania, USA) |
1971 | Lake Wilhelm was created in 1971 with the damming of Sandy Creek for flood control purposes. Lake Wilhelm is a shallow lake with a maximum depth of ab… |
Beltzville Lake (Mid-Atlantic, Northeastern Mountains, Pennsylvania, USA) |
1971 | 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… |
Lake Arthur (Mid-Atlantic, Pennsylvania, Pittsburgh & Countryside, USA) |
1970 | In the warm summer breeze, sailboats dart like flocks of colorful birds across Lake Arthur’s clear Pennsylvania waters. Located in Butler County, this… |
Arrowhead Lake (Mid-Atlantic, Northeastern Mountains, Pennsylvania, USA) |
1970 | Tucked away in the beautiful Pocono Mountains, Arrowhead Lake is a private gated community in the Northeastern Mountains region of Pennsylvania. Loads… |
Lake Marburg (Mid-Atlantic, Pennsylvania, Pennsylvania Dutch Country, USA) |
1970 | Also known as Codorus Lake Pennsylvania Dutch Country near Hanover, Pennsylvania holds a spectacular recreational resource called Lake Marburg. This 1,300-acre reservoir combine… |
Shenango River Lake (Great Lakes, Mid-Atlantic, Midwest, Northeast, Ohio, Pennsylvania, USA) |
1965 | Also known as Shenango Reservoir Located mostly in northwestern Pennsylvania between Greenville PA and Sharon PA – and spilling into northeastern Ohio – Shenango River Lake provides f… |
Lake Heritage (Mid-Atlantic, Pennsylvania, Pennsylvania Dutch Country, USA) |
1965 | One of Pennsylvania Dutch Country’s best residential neighborhoods is Lake Heritage, a gated community built around the shores of a 154-acre, private… |
Allegheny Reservoir (Chautauqua-Allegheny, Mid-Atlantic, New York, Pennsylvania, Pennsylvania Wilds, USA) |
1965 | Also known as Kinzua Dam Lake, Kinzua Lake, Lake Kinzua Flowing across tree-covered hills in northwestern Pennsylvania and southwestern New York, the Allegheny Reservoir’s 12,080 acres provide an open invit… |