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Willamette Stone

1851 establishments in Oregon TerritoryCircles of latitudeGeography of Portland, OregonHistoric surveying landmarks in the United StatesHistory of Portland, Oregon
Meridians (geography)Monuments and memorials in Portland, OregonObelisks in the United StatesParks in Portland, OregonState parks of Oregon
Willamette Stone, in western Portland, OrR
Willamette Stone, in western Portland, OrR

The Willamette Stone was a small stone obelisk originally installed by the Department of Interior in 1885 in the western hills of Portland, Oregon in the United States to mark the intersection and origin of the Willamette meridian and Willamette baseline. It replaced a cedar stake placed by the Surveyor General of the Oregon Territory in 1851; this stake defined the grid system of sections and townships from which all real property in the states of Oregon and Washington has been measured following the Donation Land Claim Act of 1850. The Willamette meridian runs north–south, and the Willamette baseline runs east–west through the marker. The easternmost northeast corner of Washington County is sited on the marker.

Excerpt from the Wikipedia article Willamette Stone (License: CC BY-SA 3.0, Authors, Images).

Willamette Stone
West Burnside Road, Portland Sylvan-Highlands

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Geographical coordinates (GPS)

Latitude Longitude
N 45.519509863889 ° E -122.74386073889 °
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Address

West Burnside Road 6625
97210 Portland, Sylvan-Highlands
Oregon, United States
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Willamette Stone, in western Portland, OrR
Willamette Stone, in western Portland, OrR
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