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Umtanum Ridge Water Gap
Umtanum Ridge Water Gap is one of the anticlinal ridges in the Yakima Folded Ridges subsection of the Columbia Basin. The site illustrates the geological processes of tectonic folding and antecedent stream cutting.
Location: Kittitas County, WA
Year designated: 1980
Ownership: Federal, State, Private
Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.
Last Updated: June 28, 2012