Umtanum Ridge

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Date of Reg.	2020-04-14 05:06:35
Date of Upd.	2023-04-01 06:00:42
ID	3017322

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About Umtanum Ridge

Umtanum Ridge is a long anticline mountain ridge in Yakima County and Kittitas County in the U. S. state of Washington. It runs for approximately 55 miles east-southeast from the Cascade Range, through the Yakima Training Center to the edge of the Columbia River at Priest Rapids Dam and Hanford Reach.