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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
Timeline
Sources and Reading
About HHS
Buy Our Book!
“Historic US 40 Route” Sign Project
Seeking Information on Ceramic Acid Vessels
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Browse Map
Item Type: Map
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Map
Geology
Hydrology
Geology and Hydrology of Refugio Valley
This item collects maps and other media files for use in exhibits, admin, etc.
Map
Land Use
Map of Pinole Landing and Vicinity
Map illustrating landforms, waters and buildings. Labels: “No. 205 Maria Antonia Martinez de Richardson, “Pinole” Contra Costa County D-451 205 ND Page 671”
Map
Transportation
Map Quadrants Showing Wharf Facilities
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