This June 5, 2013 photo shows the Winnewissa Falls at Pipestone National Monument in Minnesota. More than 50 Native Americans travel to Pipestone to quarry catlinite _ sheets of stone _ that will then... more 
This June 5, 2013 photo shows the Winnewissa Falls at Pipestone National Monument in Minnesota. More than 50 Native Americans travel to Pipestone to quarry catlinite _ sheets of stone _ that will then be carved into pipes used in traditional ceremonies. For visitors, the site offers a museum and trail that includes the waterfall. (AP Photos/Kristi Eaton) less 
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Associated Press
Mon, Jun 24, 2013 4:31 PM EDT