Lake Tapps , near Seattle , was created by electricity company in 1911 . four and a half-and-a-half square miles were submerged to power hydro-electric dam . Authorities recently drained lake to repair dam , revealing lake bed .
Lake Tapps , near Seattle , was created by electricity company in 1911 . Four-and-a-half square miles were submerged to power hydro-electric dam . Authorities recently drained lake to repair dam , revealing lake bed .