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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
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Neatline
Neatline Time
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Sources and Reading
About HHS
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“Historic US 40 Route” Sign Project
Seeking Information on Ceramic Acid Vessels
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Growing Up at Hercules
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USGS Topographic Survey Maps
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Excavation and Grading Work for Sulphuric Acid Plant
Point of land is excavated to a level grade for subsequent building foundation work.
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