The Metropolitan Water District of Southern California manages a library and archival repository documenting the activities of the organization and resources of interest to the greater history of the Los Angeles region. 

The Mojave Desert Archives preserves the history of transcontinental travel to the Los Angeles region through the Mojave Desert of eastern California. Route 66, National Old Trails Road, the Mojave Wagon Road, the Santa Fe Railway (now BNSF), Union Pacific Railroad, and Interstate highways were and are major transit routes through the desert terminating in the Los Angeles basin.

The Whittier History Room is located on the mezzanine of the Central Library and is home to the Whittier Local History Collection. The purpose of this collection is to collect, preserve and make available to the public materials reflecting the development of the City of Whittier and surrounding areas. The main areas of collection are Whittier history, Whittier Hills and California history. The…