 Today, land on all sides of the museum is property of the Los Angeles Department of Water and Power, of the City of Los Angeles.Photographs and docents show and explain that the Valley included large tracts of agricultural land; from the Paiute Native American era, through pioneer days, to the Aqueduct 'water wars era' that began diversions of water in the early 20th century to Los Angeles.A tour docent, sharing a vintage black-and-white photograph, explained " "This is a picture of my mom's apple orchard."