Willamette Meridian
Portland, OR

The Willamette Meridian was established June 4th, 1851 and runs from the Canadian border to the northern border of California. The base line runs from the Pacific Ocean to the Idaho border. All property in Washington and Oregon is referenced to this point.

The original stake was replaced by a large stone in 1855 and is now part of The Willamette Stone Park in Portland. 


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John A Shankland


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