Folsom Potatoes

prisonquarry

On our tour we share information on the “Folsom Potatoes” We just ran across this picture from the rock quarry that the prisoners worked in to forms these out of granite. Used as ballast in the ships coming up the Sacramento River or from the Bay Area, many of the streets in Seattle, Portland and San Francisco were originally paved with these stones.

Folsom Prison Quarry

 

From a waymarker in Sacramento:

“Sailing ships since the “Gold Rush” laden with supplies and sitting deep in the water just above the river bottom have inched their way slowly up the Sacramento River to Sacramento. After unloading, the ships would risk rolling over because they were sitting high in the water without ballast to stabilize the vessel on its way back to San Francisco. The natural product to serve the purpose of ballast and a secondary cargo was “paving stones” or blocks which could be off-loaded in San Francisco Bay communities to pave the streets and work areas, thus keeping horses and wagons from sinking every winter in the mud.

Quarried at Folsom, these stone blocks were usually basalt or granite, and after 1854 were delivered to the Sacramento waterfront by the Sacramento Valley Railroad. This was a significant resource producing freight for the railroad and soon became known as “Folsom Potatoes.”

Remnants of these stones can be found in Sacramento and San Francisco streets as well as other cities along the West Coast. The base of this very monument is made from some of these old cobblestones.”

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