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.
In the Sierra Nevada range of California, there exists a small, remote settlement known as Echo Lake, formerly referred to as Echo, which is located along a prominent road (U.S. Route 50) and situated north-northwest of Echo Summit.