Pymatuning Lake is a large man-made reservoir located on the border between Crawford County, Pennsylvania and Ashtabula County, Ohio, in the United States. It’s one of the largest lakes in both states, and sits within Pymatuning State Park in both Pennsylvania and Ohio.

The lake was created in 1934 by damming the outlet of the Pymatuning Swamp. It serves several purposes, including:

• Flood control: The lake helps to regulate the flow of water in the area, which helps to prevent flooding.
• Water conservation: The lake provides a source of water for drinking, irrigation, and industry.
• Recreation: The lake is a popular destination for fishing, boating, swimming, camping, and hiking.

Pymatuning Lake is known for its excellent fishing, with walleye and muskie being some of the most popular catches. The lake is also home to a variety of other fish species, including crappie, bass, bluegill, and catfish.

Boating is another popular activity on the lake. There are several public boat launches on both the Pennsylvania and Ohio sides of the lake. The lake is also large enough for water skiing, wakeboarding, and tubing.

In addition to boating and fishing, Pymatuning Lake offers a variety of other recreational activities. There are several campgrounds located on the shores of the lake, as well as hiking and biking trails. The lake is also a popular spot for bird watching, with bald eagles being a common sight.