The Shahid Abbaspour Dam (Persian: سد شهید عباسپور), formerly known as Great Reza Shah Dam (Persian: سد رضاشاه کبیر) before 1979 Revolution, is a large arch dam providing hydroelectricity from the Karun River; it is located about 50 kilometers northeast of Masjed Soleiman, in the province of Khuzestan, Iran, and originally completed in 1976, and formerly named "Reza Shah Kabir Dam".