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- Contra Costa Co. Cal. [cartographic material].
- Local history -- Contra Costa County (Calif.).; Contra Costa County (Calif.) -- Maps.; Carquinez Strait (Calif.) -- Maps.
- 1 map in 2 sheets : col. ; 60 x 96 cm.
- The Library's Historic Map Collection
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- Map of the Rancho Sobrante de San Pablo [cartographic material].
- Contra Costa County (Calif.) -- Maps. ; Local history -- Contra Costa County (Calif.). ;
- 1 map : b&w ; 56 x 43 cm.
- The Library's Historic Map Collection
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- Map of the Rancho El Sobrante [cartographic material].
- Contra Costa County (Calif.) -- Maps. ; Local history -- Contra Costa County (Calif.).
- 1 map : b&w ; 51 x 66 cm.
- The Library's Historic Map Collection
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- Plat of the Rancho Las Juntas [cartographic material].
- Contra Costa County (Calif.) -- Maps. ; Local history -- Contra Costa County (Calif.).
- 1 map : b&w ; 66 x 46 cm.
- The Library's Historic Map Collection
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- Map of the private land claims between the Palos Colorados and the Peralta Ranchos [cartographic material].
- Contra Costa County (Calif.) -- Maps. ; Local history -- Contra Costa County (Calif.).
- 1 map : b&w ; 99 x 97 cm.
- The Library's Historic Map Collection
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- Amended map of the town of Port Costa, Contra Costa Co., California [cartographic material].
- Contra Costa County (Calif.) -- Maps. ; Local history -- Contra Costa County (Calif.). ; Port Costa (Calif.) -- History -- Maps.
- 1 map : blueline ; 46 x 66 cm.
- The Library's Historic Map Collection
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- [Letter] California Assay Office WM Irelan Jr. (successor to Mars & Irelan) rooms 47, 48 & 49 merchants' exchange, San Francisco [manuscript].
- Brown, Thomas A., 1823-1889.; Local history -- Contra Costa County (Calif.).; Horses.
- 1 leaf ; 29 cm.
- The Legacy of Thomas Brown, the County's First Clerk-Recorder
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- Mining map [cartographic material].
- Contra Costa County (Calif.).; Local history -- Contra Costa County (Calif.).; Maps -- 1840-1850.; Mines and mineral resources -- California.;
- “Mining map of California 1850, Map of the Mining District of California by Wm. A. Jackson”. The legend (“Explanation”) includes symbols for: “City or Town, Ranch, Workings for Gold, Indian Villages”. The area of the map includes a section of...
- The Contra Costa County Historical Society Collection
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- Horse blanket [realia]
- Horses -- Equipment and supplies.; Local history -- Contra Costa County (Calif.).;
- Art and Artifacts from Contra Costa
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- Historic Cemetery
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Cemeteries.;
- 1 clipping; 11 x 16 cm.
- The Lost Towns of Contra Costa
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- Somersville cemetery
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Cemeteries.;
- 1 clipping; 17 x 7.5 cm.
- The Lost Towns of Contra Costa
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- Neglected pioneer cemetery
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Cemeteries.;
- 1 clipping; 18 x 8 cm.
- The Lost Towns of Contra Costa
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- Somerville research
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Cities and towns.; Coal trade.; Coal mining.; Coal mines and mining.; Ghost towns.; Extinct cities.;
- 1 clipping; 19 x 8 cm.
- The Lost Towns of Contra Costa
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- Black Diamond Mine
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Coal trade.; Coal mines and mining.; Historic mines.;
- 1 clipping; 20 x 8 cm.
- The Lost Towns of Contra Costa
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- Somersville, Nortonville
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Coal mines and mining.; Coal trade.; Ghost towns.; Extinct cities.;
- 1 clipping; 22.5 x 7 cm.
- The Lost Towns of Contra Costa
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- 2 Famed Contra Costa ghost towns stirring to life again
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Coal mines and mining.; Coal mining.; Coal trade.; Extinct cities.;
- 1 clipping; 27.5 x 10.5 cm.
- The Lost Towns of Contra Costa
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- Rites for woman mining pioneer
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Coal trade.;
- 1 clipping; 9.5 x 10 cm.
- The Lost Towns of Contra Costa
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- As described
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Extinct cities.; Ghost towns.;
- 1 clipping ; 14 x 8 cm.
- The Lost Towns of Contra Costa
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- Museum seeks to unearth funds
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Coal mines and mining.; Historic mines.;
- 1 clipping: 36 x 22 cm.
- The Lost Towns of Contra Costa
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- Bringing Somersville to life as a 'living history center'
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Historic sites.; Historic mines.; Black Diamond Mines Regional Preserve (Calif.).;
- 1 clipping: b&w photo ; 35 x 22 cm.
- The Lost Towns of Contra Costa
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- An historic house returns home
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Historic buildings.; Black Diamond Mines Regional Preserve (Calif.).; Historic sites.;
- 1 clipping: photograph; 19 x 16 cm.
- The Lost Towns of Contra Costa
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- Visitors walk to Somersville, and take walk back in time
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.; Historic mines.;
- 1 clipping: photograph; 31 x 17 cm.
- The Lost Towns of Contra Costa
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- Mailbox [realia].
- Local history -- Contra Costa County (Calif.).; Postal service.; Contra Costa County (Calif.).; Moraga (Calif.).;
- Art and Artifacts from Contra Costa
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- Somersville
- Local history -- Contra Costa County (Calif.).; Pittsburg (Calif.) -- History.;
- 1 map; 35 x 21 cm.
- The Lost Towns of Contra Costa
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- Black Diamond Mines Regional Preserve
- Black Diamond Mines Regional Preserve (Calif.).;
- 1 map: b&w sketch ;14 x 17 cm.
- The Lost Towns of Contra Costa
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- Order to pack dynamite led to career at Selby smelter
- Local history -- Contra Costa County (Calif.).; Harrison, John, H., 1886 -; Work.; El Sobrante (Calif.) -- History.; American Smelting and Refining Company -- History.;
- 1 p.: photos; 21x 34 cm.
- The Lost Towns of Contra Costa
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- Smelter work hard, but employees were treated well
- Local history -- Contra Costa County (Calif.).; Selby, Prentiss.; Richards, Charles.; Smelting.; Smelting furnaces.; Quality of work life.; Labor.; Work.;
- 1 p.: photos; 22 x 33 cm.
- The Lost Towns of Contra Costa
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- Worker pulls off gold robbery
- Veale, Richard R., 1864-1937.; Local history -- Contra Costa County (Calif.).; Gold.; Robbery.; Gold theft.; Winters, Jack.;
- 1 p.: photos; 22 x 34 cm.
- The Lost Towns of Contra Costa
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- Selby's smelter had the smokestack with the mostest
- Local history -- Contra Costa County (Calif.).; American Smelting and Refining Company -- History.; American Smelting and Refining Company.; Asarco Inc.; Asarco Inc. -- History.; Smelting.;
- 1 p.: photos; 22 x 35 cm.
- The Lost Towns of Contra Costa
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- Sparkle's found, but was it lost?
- Extinct cities.; Contra Costa County (Calif.).; Local history -- Contra Costa County (Calif.).; Railroads -- California.;
- 1 p.: photos; 35 x 21 cm.
- The Lost Towns of Contra Costa
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- Memories of life in an explosive town
- Explosions.; Local history -- Contra Costa County (Calif.).; Contra Costa County (Calif.).; Pinole (Calif.) -- History.; Relocation (Housing).; Richmond (Calif.) -- History.;
- 1 p.: photos ; 36 x 22 cm.
- The Lost Towns of Contra Costa
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- The town of Giant is long gone, except in memories
- Explosions.; Local history -- Contra Costa County (Calif.).; Contra Costa County (Calif.).; Pinole (Calif.) -- History.; Relocation (Housing).; Richmond (Calif.) -- History.;
- 1 p.; 11 x 33 cm.
- The Lost Towns of Contra Costa
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- Troubled explosives industry boomed
- Explosions.; Local history -- Contra Costa County (Calif.).; Contra Costa County (Calif.).; Pinole (Calif.) -- History.; Relocation (Housing).; Richmond (Calif.) -- History.;
- 1 p.; 19.5 x 19 cm.
- The Lost Towns of Contra Costa
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- All right, Sparkle, we know you're out there
- Extinct cities.; Contra Costa County (Calif.).; Local history -- Contra Costa County (Calif.).;
- 1 p.; 35 x 21 cm.
- The Lost Towns of Contra Costa
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- Ygnacio Valley Library groundbreaking [electronic resource].
- Walnut Creek (Calif.) -- History -- Photographs.; Library buildings -- History -- Walnut Creek (Calif.) -- Photographs.; Local history -- Contra Costa County (Calif.) -- Photographs.;
- Your Library - the First Hundred Years and Beyond
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- Branch library Brentwood [electronic resource].
- Brentwood (Calif.) -- History.; Library buildings -- History -- Brentwood (Calif.).; Local history -- Contra Costa County (Calif.). -- Photographs.;
- Your Library - the First Hundred Years and Beyond
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- San Ramon Valley Library [electronic resource].
- Danville (Calif.) -- History.; Library buildings -- History -- Danville (Calif.).; Local history -- Contra Costa County (Calif.). -- Photographs.;
- Your Library - the First Hundred Years and Beyond
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- Danville branch [electronic resource].
- Danville (Calif.) -- History.; Library buildings -- History -- Danville (Calif.).; Local history -- Contra Costa County (Calif.).;
- Your Library - the First Hundred Years and Beyond
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- Branch library Brentwood [electronic resource].
- Brentwood (Calif.) -- History.; Library buildings -- History -- Brentwood (Calif.).; Local history -- Contra Costa County (Calif.). -- Photographs.;
- Your Library - the First Hundred Years and Beyond
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- Deed. Joaquin Moraga, Francisco Moraga, José Moraga to Elam Brown [manuscript].
- Brown, Thomas A., 1823-1889.; Local history -- Contra Costa County (Calif.).; Land tenure -- California -- Moraga -- History.;
- 2 leaves ; 32 cm.
- The Legacy of Thomas Brown, the County's First Clerk-Recorder
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- Plat of the Rancho San Ramon finally confirmed to Jose Maria Amador [cartographic material] / Surveyed under instructions of the U.S. Surveyor General by John La Croze, Dep. Sur.
- Local history -- Contra Costa County (Calif.). ; San Ramon Valley (Calif.) -- History -- Maps. ; Land grants -- California -- Contra Costa County -- Maps.;
- 1 map : b&w ; 43 x 48 cm.
- The Library's Historic Map Collection
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- [Receipt] John D. Arthur [manuscript].
- Brown, Thomas A., 1823-1889.; Local history -- Contra Costa County (Calif.).; Agricultural implements -- History.
- 1 leaf ; 18 x 21 cm.
- The Legacy of Thomas Brown, the County's First Clerk-Recorder
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- [Rancho Boca de la Cañada del Pinole land grant] [manuscript].
- Brown, Thomas A., 1823-1889.; Local history -- Contra Costa County (Calif.).; Land grants -- California -- Contra Costa County -- History.; Spanish language materials.;
- 7 leaves ; 36 cm.
- The Legacy of Thomas Brown, the County's First Clerk-Recorder
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- Martinez & Amador Valley R. R. Co. [manuscript].
- Brown, Thomas A., 1823-1889.; Local history -- Contra Costa County (Calif.).; Railroads -- California -- Contra Costa County -- History.;
- 6 leaves ; 36 cm.
- The Legacy of Thomas Brown, the County's First Clerk-Recorder
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- Land claim of Relles Albizo [manuscript].
- Brown, Thomas A., 1823-1889.; Local history -- Contra Costa County (Calif.).; Real property -- California -- Contra Costa County -- History.;
- 1 leaf ; 36 cm.
- The Legacy of Thomas Brown, the County's First Clerk-Recorder
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- John Tormey and others, plaintiffs vs. Andrew Allen and others, defendants : summons and complaint in partition of Rancho el Pinole [manuscript].
- Brown, Thomas A., 1823-1889.; Local history -- Contra Costa County (Calif.).; Land tenure -- California -- Contra Costa County -- History.;
- 6 leaves ; 33 cm.
- The Legacy of Thomas Brown, the County's First Clerk-Recorder
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- Map of the town of Todos Santos [cartographic material] / Surveyed for the proprietors by L. Castro.
- Contra Costa County (Calif.) -- Maps. ; Local history -- Contra Costa County (Calif.). ; Concord (Calif.) -- History -- Maps.;
- 1 map : b&w ; 38 x 41 cm.
- The Library's Historic Map Collection
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- [Invoice] S. Blum Bros. [manuscript].
- Brown, Thomas A., 1823-1889.; Local history -- Contra Costa County (Calif.).; Household supplies -- California -- Contra Costa County -- History.;
- 1 leaf ; 40 cm.
- The Legacy of Thomas Brown, the County's First Clerk-Recorder
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- Topographical map of Contra Costa County : compiled for the Board of Supervisors from the state geological and United States surveys [cartographic material].
- Contra Costa County (Calif.) -- Maps. ; Local history -- Contra Costa County (Calif.).
- 1 map : col. ; 76 x 97 cm.
- The Library's Historic Map Collection
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- Plat of the partition of the Rancho San Ramon [cartographic material] / Complied [i. e. Compiled] from the field notes of Wm. Isaac by L. C. Wittenmyer.
- Local history -- Contra Costa County (Calif.). ; San Ramon Valley (Calif.) -- History -- Maps. ; Land grants -- California -- Contra Costa County -- Maps.;
- 1 map : b&w ; 58 x 28 cm.
- The Library's Historic Map Collection