|We took a tour of Lake Havasu today on Sunset Charter and Tour. We just took the one hour tour to Copper Canyon. They have other longer tours but this worked for us. Our boat Captain Wally gave us lots of history about Lake Havasu and the surrounding area. Lake Havasu is a large reservoir behind Parker Dam on the Colorado River, on the border between California and Arizona. The lake is 45 miles long with 450 miles of shoreline. One side is Arizona and the other side is California. Lake Havasu City sits on the lake's eastern shore. The concrete arch dam was built by the United States Bureau of Reclamation between 1934 and 1938. The lake's primary purpose is to store water for pumping into two aqueducts. Prior to the dam construction, the area was home to the Mohave Indians. The lake was named (in 1939) after the Mojave word for blue, and the water is blue. The Parker Dam has a little history with it since California started building the Dam but the state line runs down the middle of the Colorado River, Arizona felt that half of the dam belonged to Arizona. Arizona ended up sending the Arizona National Guard to the dam to stop California from building on the Arizona side. It finally got worked out so now the water supplies southern California and also Arizona.