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Rocktram, California facts for kids

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Rocktram
unincorporated community
Country  United States
State  California
County Napa County
Elevation 13 ft (4 m)

Rocktram (also, Rockfram) is an unincorporated community in Napa County, California. It lies at an elevation of 13 feet (4 m). Rocktram is located on the Southern Pacific Railroad, 3 miles (4.8 km) south of Napa, at the junction with the Napa Valley Railroad and the Basalt Rock Company rock tram. This area got its name from an overhead tramway between the Basalt Rock Company quarry and a plant located on the Napa River. The tram crossed California State Route 221 near what is now Kaiser Road. Metal containers that hung from a steel cable transported rock from Basalt’s quarry on the hills east of the highway to the plant on the river. The rocks were loaded on barges and floated down to construction sites from Sacramento to San Francisco. Rocks from Basalt were used in the construction of Treasure Island and most of the Bay Area bridges.

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