Glacial erratic boulders of Snohomish County are large glacial erratic boulders of rock which were moved to Snohomish County, Washington by glacial action during previous ice ages.

List of boulders Airport Boulder, at Martha Lake Airport Park in Martha Lake, said to be "one of the largest glacial erratic boulders in urban King, Snohomish, and Pierce counties", is approximately long on its longest axis and about twice a man's height. The erratic is composed of greenstone, and has long been used for bouldering (rock climbing), with at least four ascent routes.Edmonds Way erratic

Fraser Valley breccia, and high.

Everett Boulder, erratic found underground at downtown construction site, Colby Avenue and Wall Street. long, and high, weighs approximately . The erratic briefly had over one hundred Twitter followers and was eventually reburied."Granite" is a , granite boulder discovered "under a bunch of sticker bushes" during an October, 2015 construction project in Edmonds. After attempts to destroy the boulder resulted in destruction of the power equipment used, the city offered it for free to a city resident who would accept it on their property. near Lake Stevens. and in circumference. Largest known erratic in Washington State , and may be largest in the United States (but not North America; see the Alberta Big Rock).2 U.S. Route 2 Boulders in Gold Bar, Washington. Visible from U.S. Route 2, there are 2 large glacial erratic boulders in the Big Bend clear cut on the west side of the road, which is east of the Heidelberg Materials facility. One boulder is adjacent to the road and is approximately 30-40 feet tall, and one is further southwest from the road up the embankment.Longview Boulder found in a Gold Bar gravel mine; five times the height of a man. Blasted and removed.Unnamed erratics near Market Place road in Lake Stevens. Largest is unusual pink granite, approximately in size, and tall.

See also List of individual rocks

References

Further reading

External links Washington glacial erratics project at University of Washington dept. of earth and space sciences