Glacial erratics in Seattle (6 C) T Talus Rocks (10 F) Media in category "Glacial erratics in King County, Washington" The following 8 files are in this category, out of 8 total. The boulder was carried to this location by a huge glacier that was fed by ice flowing from Snoqualmie Pass and the drainages that now hold Lake Kachess and Lake Cle Elum. Glaciers can pick up chunks of rocks and transport them over long distances. Erratics can range from large boulders to smaller stones and pebbles. Largest is 15.33 feet (4.67 m) high, 69.5 feet (21.2 m) in circumference. Back to the story… — You can see t Glacial erratics are rocks carried by glaciers from their area of outcrop and deposited when the ice melted. Bainbridge Island Frog Rock.jpg 3,264 × 2,448; 1.91 MB. 47°39′38″N 122°09′12″W / 47.6605°N 122.1533°W / 47.6605; -122.1533 ('Homage' boulders (NE 60th)) (NE 60th), 47°36′04″N 122°17′20″W / 47.60103°N 122.28897°W / 47.60103; -122.28897 (Leschi Park erratic), 47°29.94′N 121°58.17′W / 47.49900°N 121.96950°W / 47.49900; -121.96950 (Lone Rock), 47°40′19″N 122°18′25″W / 47.67183°N 122.30689°W / 47.67183; -122.30689 (Ravenna Park erratic), 47°31′07.1″N 121°59′49.2″W / 47.518639°N 121.997000°W / 47.518639; -121.997000 (Talus Rocks), 47°42′14″N 122°18′37″W / 47.70389°N 122.31028°W / 47.70389; -122.31028 (Thornton Creek erratic), 47°40′51″N 122°17′50″W / 47.68084°N 122.2973°W / 47.68084; -122.2973 (Wedgwood Rock), 47°41′18″N 122°17′41″W / 47.6882°N 122.2948°W / 47.6882; -122.2948 (Wedgwood Square erratic), Glacial erratics in King County, Washington, "Mima Mounds continue to mystify scientists", "Big Rock, Big Trees, Little Park -- New Safeway Being Built Near Tiny Duvall Landmark", http://www.issaquahreporter.com/news/193878931.html, "Cascadia Community College students move into action to save a piece of geologic history", "Cascadia College rock-solid about its boulder", "Construction: UWB 3 and the Sports and Recreation Complex", https://nwgeology.wordpress.com/the-fieldtrips/glacial-erratic-field-trips/seattle-area-glacial-erratics/beach-erratics-at-discovery-park-seattle/, "Fantastic Erratic, Cougar Mountain Regional Park, King County", U.S. Geological Survey Geographic Names Information System: Fourmile Rock, "Thin en echelon dikes in the Highline Community College erratic", "Ravenna Park granodiorite erratic, Seattle", "Picture Glossary of New England Lithic Constructions", http://wedgwoodinseattlehistory.com/2012/03/15/parks-in-wedgwood/, "Drumlins of the Puget Lowland, Washington State, USA", "Part 6 of the Series: Living with Your Next Door Wildlife Neighbors: Memories of Beaver Lake Wildlife", "The Geographical Names Used by the Indians of the Pacific Coast—Indian Place Names About Seattle", "Rock ... And Roll: How a glacier pushed a boulder to a place near you", https://en.wikipedia.org/w/index.php?title=Glacial_erratic_boulders_of_King_County,_Washington&oldid=965572899, Creative Commons Attribution-ShareAlike License, This page was last edited on 2 July 2020, at 03:58. The irresistible force of glacial drift gave way to inertia some 14,000 years ago, leaving this 700-ton sample of gneiss as a testament to the Ice Age that blanketed the Puget Sound area. It is an important symbol in American history. The weather was not in our favor for our visit, but we hiked to Waterman Rock, a glacial erratic nestled in a bed of salal and evergreens in the Saratoga Woods Preserve. As we toured we found many erratics, each “a rock somehow transported and dropped some distance from its original home” (David Alt, Glacial Lake Missoula and Its Humongous Floods, 2001).  According to Nick Zentner of Central Washington University Department of Geological Sciences, "Canadian rocks [are] strewn all over the Puget lowland, stretching from the Olympic Peninsula clear over to the Cascade Range. "As a huge Stone is sometimes seen to lie The floodwaters, moving up to 60 miles per hour, stripped away the soil, scoured out hundred of miles of deep canyons called coulees (Grand Coulee being the largest), created the 3 ½ mile wide, 400-feet-high Dry Falls, the largest waterfall to ever exist, and the 198 feet Palouse Falls, and left 300 foot high gravel bars and huge granite boulders called glacial erratics. New England is home to glacial erratics the way Florida is home to palmetto bugs. Jump to navigation Jump to search. See? 98258, Lake Stevens "Monster" Glacial Erratic Gallery. The 90-ton glacial erratic rock at the top of this 1/4 mile-long trail is a stranger from a distant location- it was transported here thousands of years ago on an iceberg in the wake of a cataclysmic flood. Glacial Erratics Posted on: September 19th, 2011 in Historical Marker Audio Tours , Historical Marker Details | Subject: This fine-grained rock was rafted to this location during catastrophic floods that occurred during the end of the Ice Age. Back to "Glacial Erratics" Here's Nick between Ellensburg and Cle Elum - Elk Heights I-90 exit in the distance. Files should either be in the relevant subcategory or in the parent category. The Wren’s Eggs are actually glacial erratics, large rocks that were transported and deposited in the region by glaciers some 10,000 years ago. Glacial erratics in Seattle (6 C) T Talus Rocks (10 F) Media in category "Glacial erratics in King County, Washington" The following 8 files are in this category, out of 8 total. Find creative new destinations around Washington for your next hiking trip, picnic, or field trip! What makes the rock itself 'erratic' (meaning: deviating the norm) that after they are transported, they only end up in environments where they appear out of place (differ from local bedrock). The glacial erratic rock is at Martha Lake Airfield Community Park is one of the largest glacial erratic boulders in urban King, Snohomish, and Pierce counties. , 47°38′20″N 122°24′48″W / 47.63889°N 122.41333°W / 47.63889; -122.41333 (Four Mile Rock), 47°23′14″N 122°18′06″W / 47.38730°N 122.30173°W / 47.38730; -122.30173 (Highline CC), 47°37′57.8″N 122°10′46.3″W / 47.632722°N 122.179528°W / 47.632722; -122.179528 ('Homage' boulders (NE 24th)) (NE 24th) Erratics-Cascades-PB110028.JPG 1,473 × 646; 280 KB. D Discovery Park erratics (3 F) F Fourmile Rock (5 F) R Glacial Erratics. Oxford Academic (Oxford University Press) 4,077 views. 2020-06-08 Tiger Mtn Lone Rock Erratic - from side.jpg 2,400 × 1,800; 1.54 MB. A granite boulder on sandstone bedrock on Alexander Island, Antarctic Peninsula. This picture shows Puget Sound from Discovery Park, Seattle. Details like size, location, and composition are listed for each of the erratics. Washington Four are "on display" at the Washington State University's Vancouver Campus.One is tucked in a forgotten corner near the Greenhouse, and the other three are located on … For the new Redmond Central Connector, we built our own Erratic. Glacier-borne Erratics. Unlike river deposits that are often sorted into different sizes, all glacial deposits are angular and mixed up (unsorted). — okay, _technically_ they’re _not_ ‘erratics’ because an erratic has to be of a type of rock _different_ from the rock it is deposited on - hence: erratic - but I don’t know what else to call them and ‘glacial boulder-thingies’ doesn’t sound as impressive. Glacial erratics dot a field in Yellowstone National Park. Access the lake by visiting Green Lake Park (seattle.gov). The Pleistocene ice age glaciation of Puget Sound created many of the geographical features of the region, including Puget Sound itself, and the erratics are one of the remnants of that age. Lake Stevens "Monster" Glacial Erratic. Many glacial erratic boulders (often simply called glacial erratics) can be found in the Puget Sound region as far south as the Yelm area where the Puget Lobe of the glacier reached its maximum extent.. Media in category "Glacial erratics in Washington (state)" The following 7 files are in this category, out of 7 total. Now I know of two of these rocks, right here in Seattle. These glaciers left behind bits and pieces of debris, like giant boulders called glacial erratics. Glaciers can pick up chunks of rocks and transport them over long distances. “Yeah, erratics are pretty cool,” agrees David Williams, urban geologist and author of “The Seattle Street-Smart Naturalist and Stories in Stone.” “They reveal the power of ice, not only to sculpt the land, but also to act as giant trucks moving huge rocks, tens or hundreds of miles. Figures; Main; Hurley's Endurance; Going To Seattle August 17, 2004 Just to make it official, as apparently I've not made an official announcement: I'm moving to Seattle. All erratics are of a different rock type. The Pleistocene ice age glaciation of Puget Sound created many of the geographical features of the region, including Puget Sound itself, and the erratics are one of the remnants of that age. These rocks were not all pebbles; some were the size of a two story house. The retreating ice sheet dropped this massive rock at its current location about 12,000 years ago. Ecstatic Edmonds homeowner claims glacial erratic. " Erratics can be found at altitudes up to about 1,300–1,600 feet (400–490 m) in the Enumclaw area, along with kames, drumlins, and perhaps also the unique Mima mounds. The city of Lake Stevens inherited a majestic relic of the Ice Age Floods, which in 2017 was nestled in the trees on a steep ravine in a 20-year-old subdivision of multi-level homes. This website is updated and maintained by the undergraduate students in the GeoClub within the Earth and Space Sciences Department at the University of Washington. Find the location and details of each of the erratics by clicking on the colored dots on the Washington map. Category:Glacial erratics in Seattle. Anatomy of a glacier Glacial landforms The Cordilleran ice sheet The Missoula Floods Alpine glaciers Glacier fun Anatomy of a Glacier Click on the feature labels to learn more about the parts of a glacier. Glacial Erratics – Remnants of the Ice Age. Likely from lava flows that erupted out of the Pacific Ocean seafloor and carried inland and pressurized beneath the earth creating the green-stone. Definition: An erratic is a boulder transported and deposited by a glacier having a lithology different than the bedrock upon which it is sitting. The destruction caused by this cataclysm can still be seen throughout the Pacific Northwest. By Jerry Cornfield Herald Writer; Friday, November 20, 2015 9:14pm ... 78, of Seattle, both … From Wikimedia Commons, the free media repository. Glacial Erratics Near Grand Coulee Dam Basalt erratic with underlying lake silts west of Grand Coulee, Washington David Tucker has posted some great write ups on glacial erratics including a write up of a huge erratic near Lake Stevens a-monster-erratic-discovered-in-lake-stevens/ by the Puget Ice Lobe during the last glacial period approximately 18,000 years ago. Forty years ago today, May 18, 1980, I was sitting on a glacial erratic in the middle of the Duckabush River, drinking coffee with Seattle architect Alan Elliott, when we were startled by a muffled deep double-thump sound. There is an informal trail around to the dark, looming east face, rising vertically for 34 feet. Water, ice, and wind sculpted soil and rock into Other examples of glacial erratics include: Plymouth Rock, the site in Plymouth, Massachusetts that the Mayflower Pilgrims landed in 1620.  Boulders greater than 3 meters in diameter are "rare" in the Vashon till, but can be found, as seen in the table below. 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