Folsom Lake is a large reservoir located in California, created by the Folsom Dam on the American River. It covers approximately 75 miles of shoreline and has a capacity of about 977,000 acre-feet of water. The lake is a popular destination for outdoor activities such as boating, fishing, and swimming. The surrounding Folsom Lake State Recreation Area offers hiking and biking trails, picnic areas, and campgrounds. The area is home to diverse wildlife, making it a great spot for nature enthusiasts. Folsom Lake plays a crucial role in flood control, water supply, and hydroelectric power generation for the region.