Tuesday Oct 28 2008 comments Natoma Ditch near Mormon Island By: Don Chaddock/The Telegraph -A +A The Natoma Ditch winds its way through the ruins of Red Bank at Folsom Lake. An old tree stump sits along the banks of the Natoma Ditch near the ruins of Red Bank in the Mormon Island area. The waters of Folsom Lake are low due to the drought, allowing visitors to see these areas for the first time in more than a decade. Trees once lined the Natoma Ditch, constructed between 1851 and 1854 in the Mormon Island area known as Red Bank. The ruins are beginning to resurface from Folsom Lake due to the drought. The Natoma Ditch hugs the banks of Folsom Lake. The ditch once provided water to the Red Bank area and has been underwater, except for periods of severe drought, since 1956. Keith McLean and his family, of El Dorado Hills, explore the ruins of Red Bank Saturday at Folsom Lake. The Natoma Ditch once supplied water from Salmon Falls to Prairie City, Mormon Island, Negro Bar and Red Bank.