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The Refugio Valley
Rocks, Soils, Hills and Valleys
Estuary and Watershed
Human Settlement
Rails, Piers and Roads
The Hercules Powder Works
Explosives and the Second Industrial Revolution
Commerce in Explosive Products
Operation and Development of the Hercules Works
Conditions of Production
The Municipality
Factory Town
Municipal Growth
Municipal Crisis
Municipal Austerity
Times and Places
Neatline
Neatline Time
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“Historic US 40 Route” Sign Project
Seeking Information on Ceramic Acid Vessels
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Water Supply Lines at the Works - Annotated
Annotated map shows location of water supply lines to buildings and process lines at the Hercules Works
Map
Infrastructure
Land Use
...2 more
Water Supply Lines at the Works
Map shows location of water supply lines to buildings and process lines at the Hercules Works
Map
Land Use
Sandow Maps
Legend: Maps Showing Portions of Alameda and Contra Costa Counties, City and County of San Francisco, Carefully Compiled From Official and Private Maps, Surveys and Data
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