Italy
The Basalt Cobblestone Quarries District, in Clark County, Washington near Ridgefield, is a 535 acres (2.17 km2) area which was listed on the National Register of Historic Places in 1981. It included seven contributing sites: seven separate quarries. It is located in the Carty Unit of the Ridgefield
National Wildlife Refuge.
Listen to the audio guide for Basalt Cobblestone Quarries District Free on WIP — starts by itself when you arrive, even with the screen off