Boulder Park

Yeager Rock, a glacial erratic on Waterville Plateau, Washington, USA

Boulder Park National Natural Landmark along with the nearby Natural Landmarks McNeil Canyon Haystack Rocks and Sims Corner Eskers and Kames comprise several of the best examples of Pleistocene ice stagnation landforms in Washington. Features include numerous glacial erratics near and on the terminal moraine. Boulder Park is located on the Waterville Plateau of the Columbia Plateau in north central Washington state in the United States. The boulders provide important evidence for glacial erosion and transport, as well as marking the direction of movement and the terminus of the Okanogan lobe on the southern margin of the Cordilleran ice sheet during the last glaciation.^[1]

See also

• List of National Natural Landmarks in Washington State

References

External links

• U.S. National Park Service on Sims Corner Eskers and Kames

Photo gallery

• 

  Mixed erratics located near Sims Corner. The nearest is basalt, which the ones behind it are granite.

• 

  A kame among the glacial drift on the terminal morraine.

• 

  Terminal morraine (Withrow Moraine) of the Okanagon Lobe

• 

  Multiple erratics on the terminal morraine of the Okanagon Lobe. Cascade mountains in the background.

• 

  Multiple erratics on the terminal morraine of the Okanagon Lobe.

Ice Age Floods National Geologic Trail in the Pacific Northwest Ice Age Glacial Floods Missoula Floods Glacial Lakes Glacial Lake Missoula Glacial Lake Columbia Temporary Lakes Lake Lewis Lake Condon Lake Allison Ice Age Floods Glacial Residue Withrow Moraine Boulder Park Sims Corner Eskers and Kames Ice Age Floods Erosion & Deposition Features Foster Coulee Grand Coulee Moses Coulee Channeled Scablands Dry Falls Drumheller Channels Crab Creek Corfu Slide Palouse Falls Touchet Formation Wallula Gap Columbia River Gorge Alameda Ridge Related contemporaneous events Bonneville Flood

Coordinates: 47°52′43″N 119°48′06″W / 47.87861°N 119.80167°W / 47.87861; -119.80167