Outcrops of lake sediments occupy a length of 22.5 kilometres ( 14.0 mi ) along the Amargosa River .
Are 17.7 kilometres ( 11.0 mi ) wide at Outcrops ' broadest .
Outcrops of lake sediments occupy a length of 22.5 kilometres ( 14.0 mi ) along the Amargosa River and are 17.7 kilometres ( 11.0 mi ) wide at their broadest .