Think on these things: Never too old 02/06/2024 FacebookTwitterEmail Kangaroo Island's old salt mining site near American River, shows remnants of a bygone era. Photo: Supplied Purchase this photo from Pic Store: 410363 Tony Gates The rocks with rectangular holes you see in the picture are very much part of the history of South Australia, […] Subscribe or Login to see the rest of the content. Username Password Remember Me Forgot Password