Travelling Australia
Mt Gambier
umpherston sinkhole Previous photograph content Next photograph
Umpherstone sinkhole was formed when the top of a cave, formed by the action of water through limestone, collapsed. The original topsoil formed the floor of the sinkhole and became the Sunken Garden. James Umpherston originally beautified the sinkhole in about 1886.
16 September 2004, Mt Gambier. SA.