Echo Lake, is the name of a glacial lake—summer reservoir located in El Dorado County, eastern California, United States.GeographyEcho Lake is in the Sierra Nevada, and within the El Dorado National Forest. The lake is approximately 2mi from Highway 50 at Echo Summit.The lake is divided into two sections; an Upper lake, and a Lower lake. The elevation of Echo lake is maintained in summer months with a dam at 7414ft above sea level.There has been little development beyond lakeside cabins.
