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",[1] is approximately 20 feet (6.1 m) long on its longest axis and about twice a man's height. The erratic is composed of greenstone,[2] and has long been used for bouldering (rock climbing), with at least four ascent routes.[3][4]
Everett Boulder, erratic found 30 feet (9.1 m) underground at downtown construction site, Colby Avenue and Wall Street. 18 feet (5.5 m) long, and 10 feet (3.0 m) high, weighs approximately 300,000 pounds (140,000 kg).[6][7][8] The erratic briefly had over one hundred Twitter followers and was eventually reburied.[9]
"Granite" is a 6-by-7-by-4.5-foot (1.8 m × 2.1 m × 1.4 m), 30,000-pound (14,000 kg) 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.[10][11]
Lake Stevens Monster near Lake Stevens. 34 by 78 feet (10 m × 24 m) and 210 feet (64 m) in circumference. Largest known erratic in Washington State as of 2011[update],[12] and may be largest in the United States (but not North America; see the Alberta Big Rock).
Unnamed erratics near Market Place road in Lake Stevens. Largest is unusual pink granite, approximately 12 by 20 feet (3.7 m × 6.1 m) in size, and 10 feet (3.0 m) tall.[14]
^Dave Tucker (July 21, 2011), "True granite: an unusual granite erratic in Lake Stevens", Northwest Geology Field Trips
Further readingedit
Thompson, Evan (May 8, 2018). "Geologic wonders offer awe-inspiring sights, a glimpse into the past – Venture out to see glacial erratics around Snohomish County and on Whidbey Island". Everett Herald.
External linksedit
Washington glacial erratics project at University of Washington dept. of earth and space sciences
glacial, erratic, boulders, snohomish, county, washington, coordinates, using, openstreetmap, download, coordinates, coordinates, primary, coordinates, secondary, coordinates, glacial, erratic, boulders, snohomish, county, large, glacial, erratic, boulders, ro. Map all coordinates using OpenStreetMap Download coordinates as KML GPX all coordinates GPX primary coordinates GPX secondary coordinates 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 Contents 1 List of boulders 2 References 3 Further reading 4 External linksList of boulders editAirport 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 1 is approximately 20 feet 6 1 m long on its longest axis and about twice a man s height The erratic is composed of greenstone 2 and has long been used for bouldering rock climbing with at least four ascent routes 3 4 47 51 53 7 N 122 14 10 7 W 47 864917 N 122 236306 W 47 864917 122 236306 Airport Boulder nbsp Edmonds Way erratic Fraser Valley breccia 10 by 15 feet 3 0 m 4 6 m and 12 feet 3 7 m high 5 47 47 21 N 122 21 17 W 47 7892 N 122 3548 W 47 7892 122 3548 Edmonds Way erratic nbsp Everett Boulder erratic found 30 feet 9 1 m underground at downtown construction site Colby Avenue and Wall Street 18 feet 5 5 m long and 10 feet 3 0 m high weighs approximately 300 000 pounds 140 000 kg 6 7 8 The erratic briefly had over one hundred Twitter followers and was eventually reburied 9 47 58 40 N 122 12 31 W 47 9779 N 122 2086 W 47 9779 122 2086 Everett Boulder nbsp Granite is a 6 by 7 by 4 5 foot 1 8 m 2 1 m 1 4 m 30 000 pound 14 000 kg 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 10 11 47 47 58 N 122 20 28 W 47 7995 N 122 3412 W 47 7995 122 3412 Granite nbsp Lake Stevens Monster near Lake Stevens 34 by 78 feet 10 m 24 m and 210 feet 64 m in circumference Largest known erratic in Washington State as of 2011 update 12 and may be largest in the United States but not North America see the Alberta Big Rock 47 59 816 N 122 6 954 W 47 996933 N 122 115900 W 47 996933 122 115900 Lake Stevens Monster nbsp Longview Boulder found in a Gold Bar gravel mine five times the height of a man 13 Blasted and removed 47 50 N 121 38 W 47 833 N 121 633 W 47 833 121 633 Longview Boulder nbsp Unnamed erratics near Market Place road in Lake Stevens Largest is unusual pink granite approximately 12 by 20 feet 3 7 m 6 1 m in size and 10 feet 3 0 m tall 14 47 59 50 5 N 122 05 55 52 W 47 997361 N 122 0987556 W 47 997361 122 0987556 Market Place road nbsp References edit Martha Lake Airport Park Snohomish County Washington retrieved 2015 04 05 David C McConnell March 8 2012 History of Martha Lake Airport Community Park and Big Rock Snohomish County Parks Department Snohomish County Parks e Newsletter Snohomish County Washington April 2012 Jacob Smith October 31 2012 Airport Boulder SummitPost org Bill Sheets May 31 2011 Big boulder in Edmonds one of many left by long gone glaciers The Everett Herald archived from the original on 2015 06 21 Chris Winters November 20 2014 Giant rock possibly 2 million years old found at construction site Everett Herald Giant prehistoric rock found at Everett construction site KIRO TV November 20 2014 Sean Breslin November 22 2014 Massive Glacial Boulder Unearthed at Construction Site in Everett Washington Weather com Chris Winters November 24 2014 Boulder reburied at Everett hotel construction site Everett Herald Payne Bob October 23 2015 Would you like a rock for your yard A really really big rock The Seattle Times Sharon Salyer October 23 2015 Huge rock can be yours but there are a few rules set in stone Everett Herald Dave Tucker July 18 2011 The Lake Stevens monster largest erratic in Washington Largest in the US Northwest Geology Field Trips Longview Boulder Blast Snohomish County Washington PDF Bulletin SubTerra Inc B182 Dave Tucker July 21 2011 True granite an unusual granite erratic in Lake Stevens Northwest Geology Field TripsFurther reading editThompson Evan May 8 2018 Geologic wonders offer awe inspiring sights a glimpse into the past Venture out to see glacial erratics around Snohomish County and on Whidbey Island Everett Herald External links editWashington glacial erratics project at University of Washington dept of earth and space sciences nbsp This Snohomish County Washington state location article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Glacial erratic boulders of Snohomish County Washington amp oldid 975804127, wikipedia, wiki, book, books, library,
