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Zhenja92 t1_jc3xg49 wrote on March 13, 2023 at 9:24 PM

For anyone who is looking for it, it is on I-90 just NE of the Columbia River bridge at Vantage. It is closed for the season: https://maps.northwestportal.com/outdoors/#11.26/46.964149/-119.985398?search=true&f=namelc&q=wildhorse%20monument