Echo Lake (formerly, Echo) is a small unincorporated community in El Dorado County, California, United States, along U.S. Route 50 in the mountains of the Sierra Nevada. It is  north-northwest of Echo Summit.
Echo Lake (formerly, Echo) is a small unorganized settlement in El Dorado County, California, United States, situated along U.S. Route 50 in the Sierra Nevada mountains, approximately north-northwest of Echo Summit.