Oyster Shells from 5 Million Years Ago

When the lower Murray River was part of the ocean

My father was born in the southeast of Australia, not far from the Murray River that is the longest river in Australia which is the driest inhabited continent on Earth. My father would tell me how the river began in the mountains as a stream feed by melting ice, dropping down to wide fertile plains his homeland; where my cousin Steve Henty still milks c…