An old stone shepherd's cairn on the Zumwalt Prairie Preserve at dusk. Cairn's like this one dot the horizon of the high prairie. Some think they may have been built by the Nez Perce indians before the Basque shepherders arrived at the end of the 19th century. Zumwalt Prairie is one of the largest remaining intact patches of bunchgrass prairie left in North America. Spring 2001
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