List of National Natural Landmarks in Washington

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From List of National Natural Landmarks, these are the National Natural Landmarks in Washington. There are 18 in total.

Name Image Date Location County Ownership Description
1 Boulder Park and McNeil Canyon Haystack Rocks Glacial-Drift-PB110031.JPG 1986 Douglas mixed- federal, state The most illustrative examples of glacial erratics in the United States.
2 Davis Canyon 1986 Okanogan mixed- state, private One of the largest and least disturbed examples of antelope bitterbrush-Idaho fescue shrub steppe remaining in the Columbia Plateau.
3 Drumheller Channels Drumheller Channels 1986 Adams, Grant mixed- federal, state, private Illustrates the dramatic modification of the Columbia Plateau volcanic terrain by late Pleistocene catastrophic glacial outburst floods. Includes Columbia National Wildlife Refuge.
4 Ginkgo Petrified Forest Ginkgo Petrified Forest 1965 Kittitas state Thousands of logs petrified in lava flows. Part of Ginkgo/Wanapum State Park.
5 Grand Coulee Steamboat Rock 1965 Grant mixed- federal, state, private An illustration of a series of geological events.
6 Grande Ronde Feeder Dikes 1980 Asotin private The best example of basalt dikes, the congealed feeder sources of the Columbia River basalt plateau.
7 Grande Ronde Goosenecks 1980 Asotin federal A 1,500-foot (460 m) deep canyon that follows a tortuous path along meanders.
8 The Great Gravel Bar of Moses Coulee 1986 Douglas mixed- state, private Largest and best example of a pendent river bar formed by catastrophic glacial outburst floods that swept across the Columbia Plateau.
9 Kahlotus Ridgetop 2011 Franklin state The best remaining example of the Central Palouse Prairie grassland subtheme.
10 Mima Mounds MIMA MOUNDS.jpg 1966 Thurston state A prairie containing unusual soil pimples of black silt-gravel.
11 Nisqually Delta 1971 Pierce, Thurston mixed- federal, state, tribal, private An unusually fine example of an estuarine ecosystem. INcludes Nisqually National Wildlife Refuge.
12 Point of Arches 1980 Clallam federal An outstanding exhibit of sea action in sculpturing a rocky shoreline. A unit of Olympic National Park.
13 Rose Creek Preserve 1984 Whitman private The best remaining example of the aspen phase of the hawthorne-cow parsnip habitat type in the Columbia Plateau. Managed by The Nature Conservancy.
14 Sims Corner Eskers and Kames Yeager Rock 1986 Douglas mixed- federal, state, private The best examples in the Columbia Plateau of landforms resulting from stagnation and rapid retreat of the ice sheet during the last glaciation.
15 Steptoe and Kamiak Buttes Steptoe Butte 1965 Whitman mixed- state, county, private Isolated mountain peaks of older rock surrounded by basalt, rising above the surrounding lava plateau.
16 Umtanum Ridge Water Gap View from Umptanum Ridge 1980 Kittitas mixed- federal, state, private Illustrates the geological processes of tectonic folding and antecedent stream cutting.
17 Wallula Gap Wallula Gap 1980 Benton, Walla Walla mixed- state, federal, county, municipal The largest and most spectacular of several large water gaps through basalt anticlines in the Columbia River basin.
18 Withrow Moraine and Jameson Lake Drumlin Field Withrow Moraine 1980 Douglas mixed- federal, private The best examples of drumlins and the most illustrative segment of the only Pleistocene terminal moraine in the Columbia Plateau

References[edit]

  • "Washington". National Natural Landmarks Program. National Park Service (U.S. Department of the Interior). Retrieved November 1, 2012.