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Big Basin is a Huge natural sink hole more than one mile in diameter and about 100 feet deep. The Big Basin Prairie Preserve is now home to about 50 head of free-roaming buffalo. In the 1800s this area was often an encampment for settlers, cowboys, or Indians.
Photographed 06-11-2006. Copyright 2006 by KansasCyclist.com. All Rights Reserved.