Manuscripts
Cecil Hanson collection of Southern California maps
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Tentative report to the Board of Supervisors of the Los Angeles County Flood Control District
Manuscripts
The report, written by J. W. Reagan, Chief Engineer of the Los Angeles County Flood Control District, was presented to the Board of Supervisors of the Los Angeles County Flood Control District, February 7, 1924. The report covers the work previously done to prevent flooding in southern California; precipitation data; past floods in southern California; plans for conservation of water; the Los Angeles water supply; and future plans for flood control. The report chiefly deals with floods caused by the Los Angeles River and the San Gabriel River. Also included with the report is a list of cost estimates for the proposed flood control work and twenty pullout maps.
mssHM 66799
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United States map collection, (bulk 1804-1927)
Visual Materials
A collection of the United States territory and state maps documenting mining sites, railroad routes, and land ownership during the nineteenth and twentieth century. The collection also includes a folder of eighteenth and nineteenth century European maps.
ephMP

Rancho Providencia belonging to Alexander Bell
Manuscripts
Bordered by Ranchos San Fernando, San Rafael, Los Feliz; public land. Surveyed under the instructions of arbitrators Warner, Barrows & Keller. Features include Cahuenga Pass, Sierra Cahuenga, Rio Los Angeles, Loma Alta o Cahuenga; structures; color highlights, hachures.
mssSolano SR_Map_0112
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Map of a change of a part of the Anaheim and Silverado Road, County of Los Angeles, State of California
Manuscripts
Collection of maps surveyed for the Los Angeles County Assessor's Office between 1860 and 1897. The maps primarily focus on excavations, improvements, and expansions of roads throughout Los Angeles, San Bernardino, and Orange Counties, with geographic coverage ranging from Malibu to Pomona and Newhall to San Juan Capistrano. Most of the maps show boundary lines of the various Ranchos existent throughout these counties, and many also include buildings, railroads, telegraph lines, land use, relief, and elements of the natural landscape such as canyons and rivers. Also included are maps showing the San Gabriel Mission, San Juan Capistrano Mission, and an elevation of the Los Angeles County court house. Some of the Ranchos depicted include San Antonio, Azusa, San Jose, Los Nogales, San Pedro, San Joaquin, San Rafael, Centinela, La Puente, Sausal Redondo, La Ballona, Rodeo-de-las-Aguas, Cienega, San Pasqual, and San Francisquito. Property shown includes that of Elias 'Lucky' Baldwin, Pio Pico, and Abel Stearns. The maps were originally housed in 16 bound volumes.
LARM_Vol_11_13.02
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SOUTHERN CALIFORNIA, COASTAL
Manuscripts
The collection consists of maps, field books, legal documents, business papers, and diaries related to the work of surveyors George Hansen, Alfred Solano, Sidney B. Reeve, and others. The maps and surveys in the collection are of the city of Los Angeles, Southern California ranchos, and subdivisions of the city of Los Angeles and neighboring towns. The collection contains over maps and sketch maps. Other subjects represented in the collection include: civil engineering, land subdivision, mines and mineral resources, and daily life in Los Angeles and Los Angeles County.
mssSolano
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Map of the extension of the Southern Pacific Railroad at Wilmington
Manuscripts
The collection consists of maps, field books, legal documents, business papers, and diaries related to the work of surveyors George Hansen, Alfred Solano, Sidney B. Reeve, and others. The maps and surveys in the collection are of the city of Los Angeles, Southern California ranchos, and subdivisions of the city of Los Angeles and neighboring towns. The collection contains over maps and sketch maps. Other subjects represented in the collection include: civil engineering, land subdivision, mines and mineral resources, and daily life in Los Angeles and Los Angeles County.
mssSolano