Rio Tinto, Alcoa step aside for Australia’s largest national park

[caption id="attachment_821099" align="aligncenter" width="600"] The new agreement will see the WA’s Mitchell Falls included in the Kimberley National Park Australia.[/caption] Miners Rio Tinto (ASX:RIO) and Alcoa (NYSE:AA) agreed Tuesday to ditch a 40-year-old agreement for a joint project in Australia, handing...