Central Anza-Borrego: US Gypsum Quarry
US Gypsum Quarry Plant
US Gypsum Quarry
Unprocessed Gypsum, US Gypsum Quarry
Unprocessed gypsum, US Gypsum Quarry
US Gypsum Quarry
Fish Creek Mountains
US Gypsum Quarry
Fish Creek Mountains
Restoration, US Gypsum Quarry
The San Juan Bautista de Anza National Historic Trail crosses the Lower Borrego
Valley.
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