glacial erratics puget sound

Get the best of ParentMap delivered right to your inbox. You don’t have to understand geology to commune with a great rock — or scramble up it and stand victorious on top — but knowing a little about the forces that created and shaped such rocks can turn a big boulder into a real-life natural history experience.Â. Ancient varves have been used for absolute age dating (Puget Sound area, Washington). STAY CONNECTED! The Pleistocene ice age glaciation of Puget Sound created many of the geographical features of the region, including Puget Sound itself,[1] and the erratics are one of the remnants of that age. Seattle Activities for Kids, Parenting Articles and Resources for Families. The glacial ice itself deposited the glacial till that mantles much of the Puget Sound landscape. These are glacial erratics. Stop by for a climb or a pat when you are in the area, and be sure to say hello. The lowlands around Puget Sound are covered by glacial drift. Largest in the US? My favorite erratic is found along the shoreline here. 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. Credit: John Gateley/Flickr CC. Like climbing trees, scrambling atop big rocks is one of those genuine childhood pleasures that these days, in our nature deficiency, we have to schedule into the family program. It's theorized that the rock -- called a glacial erratic -- was pushed into place with glacial movement of the Cordilleran Ice Sheet. One of the garden’s crown jewels, the Paradise Garden is located at the entrance of Highline SeaTac Botanical Garden. The water feature is centered around a huge cedar root salvaged from Elda’s previous pond garden and a massive glacial erratic found during pond excavation. Your Puget Sound resource for family, fun and more 'cause parenting is a trip! Some have signs prohibiting climbing. Puget Sound Glacial Animation – Video. Huge rocks carried by glaciers are fascinating and fun to climb on, Duvall's Big Rock. The photo below shows a glacial erratic near Carson Pass. Even if you can’t climb, whenever possible touch the rock, lean against it, smell it, measure it against your body. I live within spitting distance of the Puget Sound shoreline along Browns Bay north of Edmonds. However, there is occasionally a large boulder perched on the ground surface. Both were sculpted by the thick and extensive glaciers that advanced south to just beyond Olympia. As the ice advanced, sheering cliffs and cutting ravines, the glaciers picked up hunks of rock and carried them along. When the ice melted, these rocks were left miles away from their place of origin. Many glacial erratic boulders(often simply called glacial erratics) can be found in the … Some are just too big to climb safely without proper climbing equipment; others are in balance with a fragile ecology, so be mindful of their lichen, moss and ferns. Animation of the Vashon Glaciation 20,000 years ago to present. glaciers covered the Puget Sound area as far south as Olympia. Glacial till (sediment deposited directly by the ice) and outwash (sediment deposited by meltwater in front of the glacier) make up most of what is found at or near the surface. These are erratic boulders, which were derived from the basement rocks of … 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. Glacial lake sediments often display annual layers called varves that reflect the finest silt and clay settling during frozen winter months altenating with coarser silt and sand washed in over the summer months. When the glaciers advanced into the Puget Sound region two million years ago, the major features of our Northwest landscape — the volcanoes, mountain ranges, rivers, and basins — already existed. "Erratics" take their name from the Latin word errare (to wander), and are carried by glacial ice, often over distances of hundreds of kilometres.Erratics can range in size from pebbles to large boulders such as Big Rock (16,500 tonnes or 18,200 short tons) in Alberta. Walking along airstrip, the unmarked junction for the erratic appeared in another quarter mile. Meltwater flowing below the ice carved out troughs that we know as valleys. … The Wedgwood Erratic at NE 72nd Street and 28th Ave NE is a huge boul-der that these glaciers brought down from the mountains near Bellingham. Boulder-dominated intertidal areas in estuarine waters occur uncommonly in the Puget Sound; some could be classified as artificial substrata (riprap), while some consist of glacial erratics perched on hardpan. As the Fraser glacier melted starting about 15,000 years ago, it deposited materials on San Juan Island. Climbing tips: Use your best judgment. Rock hills of pre- glacial sculpture, lying beyond the limit of glaciation, begin here and continue southward past the Columbia. Glacial erratics in the Puget Sound region‎ (6 C, 2 F) T Tamanowas Rock‎ (2 F) Media in category "Glacial erratics in Washington (state)" The following 7 files are in this category, out of 7 total. [23], 47°40.124′N 122°25.210′W / 47.668733°N 122.420167°W / 47.668733; -122.420167 (Discovery Park beach erratics), 48°04′24″N 122°47′22″W / 48.07333°N 122.78944°W / 48.07333; -122.78944 (Fort Townsend State Park), Native Americans called the rock LE'plEpL, also written La'pub, and also called it Tele'tla (meaning "rock"). Bainbridge Island Frog Rock.jpg 3,264 × 2,448; 1.91 MB. Most places are open, but you'll want to double-check before heading out as open status can change day by day. A glacial erratic is glacially-deposited rock differing from the size and type of rock native to the area in which it rests. The Vashon Stade. The last glacial climatic interval was called the Fraser glaciation, which sculpted much of the topography we see today in … Jump to. The glacial advance caused lakes to form and deposited clay in them. So much glacial ice existed that the oceans were 300 feet lower than they are today. In spite of the dense tree cover and dense development, glacial landforms are much in evidence in the Puget Sound region, and this includes large glacial erratics. Continental ice sheets have repeatedly advanced and retreated from the Puget Sound region. Out the window now I see more than water; I see its history. The till is dotted with glacial erratics, many of which originated in Canada. In spite of the dense tree cover and dense development, glacial landforms are much in evidence in the Puget Sound region, and this includes large glacial erratics. Most of Whidbey Island's terrain is relatively smooth because it has been sculpted in glacial till and sediments. Science Content 1. [6] The soil of Seattle, the state's largest city, is approximately 80% glacial drift, most of which is Vashon glacial deposits (till),[7] and nearly all of the city's major named hills are characterized as drumlins (Beacon Hill, First Hill, Capitol Hill, Queen Anne Hill) or drift uplands (Magnolia, West Seattle). A glacial erratic is a piece of rock that differs from the size and type of rock native to the area in which it rests. Ice sheets advanced across Puget Sound, depositing large volumes of glacial sediment. The crossing for me is no longer just scenic, but a journey in geologic time. The Excellent Erratics, Big and Small, of Des Moines. Gazzam Lake Nature Preserve 03 - glacial erratic just off main trail.jpg 6,000 × 4,000; 13.1 MB. They often contain veins of minerals and other unusual surprises such as fossils. As the Puget Lobe advanced, it deposited hundreds of feet of Lawton Clay, Esperance Sand, and Vashon Till. Scroll through the image arrows above to see a few big rocks you can easily make friends with. Make friends. For a quick afternoon pick-me-up, there’s nothing like scaling a boulder to elevate energy and make you want to woot with joy. The glacial sediments were smoothed by the ice at the base of the Vashon glacier into the relatively flat horizon you see on the hills across Puget Sound. Such rocks can be found throughout the park, including the famous "Glacial Boulder" near Inspiration Point in the park. I think it's something every kid can relate to.”. Are You Raising Your Child With a Growth Mindset or a Fixed One? These processes have established the broad-scale topography and geology of the region. This form needs Javascript to display, which your browser doesn't support. Annie Fanning is a mother of two brilliant daughters, a Seattle Tree Ambassador and a flower-throwing anarchist. [3][8] Boulders greater than 3 meters in diameter are "rare" in the Vashon till,[2] but can be found, as seen in the table below. And people sometimes refer to large landscape rocks as “urban erratics,” which is fun but not really correct as glaciers had nothing to do with their turning up in your garden. Glaciers melt faster in salt water than on land. ... Several glacial eratics are found at the north beach. The final episode was the Wisconsin glaciation, a cycle that took place from 100,000 years ago until about 10,000 years ago. Glacial Lakes of the Puget Lobe. Left took us down into the forest and the depression that holds the erratic. The glacial ice was nearly one-half mile thick at Seattle and obliterated all the soils beneath it.When the glaciers melted, much of what was left behind was a mixture of sand, silt, clay, and rocks called till, much like the material at the A legend says that a hero named Sta'kub could throw a giant cedar and hazel branch dragnet over the rock while standing at the beach. The retreat of that Vashon Glacier, a melting of astonishing power, sculpted Puget Sound, the islands we sail towards, and all the waters from Olympia to the Strait of Juan de Fuca. This boulder is at least 15 feet tall (~5 m), and is a glacial erratic that was most likely plucked from the bedrock beneath Long Island Sound and later deposited along the Roanoke Point Moraine during the retreat of the Wisconsinan glaciers some 20,000 years ago. Erratics-Cascades-PB110028.JPG 1,473 × 646; 280 KB. From glaciers to volcanoes to earthquakes, witness the processes that have shaped the Puget Sound landscape. Get our monthly magazine delivered to your home! Great New Podcast Recommendations for Kids and Families, 4 Buzzworthy New Movies to Watch With Your Kids This Fall, Virtual Reality for Family Education, Exercise and Entertainment, The Seattle Street-Smart Naturalist and Stories in Stone, Climb the Streets: 5 Exciting Stairway Walks for Seattle-Area Families, Last Day to Order a Hanukkah Party toolbox From Chabad of NW Seattle, 'A Christmas Carol' Radio Play by ACT Theatre, 'The Little Engine That Could' — Virtual Performance by StoryBook Theater, Campus Luminata, Virtual Winterfest Performances and Coloring Contest. Skip ahead to go straight to the giant rocks, or scroll down for some history on these nifty erratics. Introduce yourself to the rock. Four Mile Rock at right center is a glacial erratic in Seattle, Washington. [27], 47°38′20″N 122°24′48″W / 47.63889°N 122.41333°W / 47.63889; -122.41333 (Four Mile Rock)[28], 47°41′46″N 122°31′24″W / 47.69612°N 122.52347°W / 47.69612; -122.52347 (Frog Rock), 46°51′54″N 122°34′45″W / 46.86507°N 122.57904°W / 46.86507; -122.57904 (Lake Lawrence erratic), 47°59.816′N 122°6.954′W / 47.996933°N 122.115900°W / 47.996933; -122.115900 (Lake Stevens Monster), 47°39′47″N 122°46′12″W / 47.66297°N 122.769916°W / 47.66297; -122.769916 (Lone Rock), 47°6′15.5″N 123°4′3.0″W / 47.104306°N 123.067500°W / 47.104306; -123.067500 (Oyster Bay erratic), 47°09′14″N 122°11′41″W / 47.153807°N 122.194685°W / 47.153807; -122.194685 (Skystone), 48°03′38″N 122°27′47″W / 48.06056°N 122.46306°W / 48.06056; -122.46306 (Waterman Rock), 47°40′51″N 122°17′50″W / 47.68084°N 122.2973°W / 47.68084; -122.2973 (Wedgwood Rock), 47°53.593′N 122°38.579′W / 47.893217°N 122.642983°W / 47.893217; -122.642983 (White Rock), sfn error: no target: CITEREFTroostBooth2008 (, sfn error: no target: CITEREFBoothTroostShimel2008 (, sfn error: no target: CITEREFGoldstein1994 (, sfn error: no target: CITEREFWaterman1922 (, Glacial erratics in the Puget Sound region, "Mima Mounds continue to mystify scientists", "Bellingham area glacial erratics: The Arroyo Park erratic", "Distributed Evidence: Mapping Named Erratics", "Big Rock, Big Trees, Little Park -- New Safeway Being Built Near Tiny Duvall Landmark", "UW professor puts Big Rock in its geologic place", "Big Rock for sale: Giant stone goes with Coupeville apartments", "Coupeville Town Council unmoved by Big Rock", "Conglomerate Erratic and Link to Northwest Geology Field Trips Write Up of a Huge Erratic", https://nwgeology.wordpress.com/the-fieldtrips/glacial-erratic-field-trips/seattle-area-glacial-erratics/beach-erratics-at-discovery-park-seattle/, U.S. Geological Survey Geographic Names Information System: Fourmile Rock, "The Lake Stevens monster- largest erratic in Washington. Holiday Magic at the Fair: What Families Need to Know, U-Cut Christmas Tree Farms for Seattle-Area Families, Weekender: Family Fun Ideas for Seattle, the Eastside and South Sound, Glacial Erratics: Awesome Giant Rocks to Visit Around Seattle, How New Parents Can Create Calm in the Chaos, Vitamin D Levels During Pregnancy Linked with Child IQ, Welcoming a Newborn During the ‘New Normal’, Know Before You Go: Holiday Travel During the Pandemic, 16 Take-Home Craft and Cookery Kits for Puget Sound Families, The Pornographic Perils of Virtual Schooling, Why You Should Try Gameschooling With Your Kids, 9 Adorable Christmas Treats to Make With Kids, 50+ Ways to Stay Cozy as a Family This Winter, 10 Homemade Christmas Gifts That Are Actually Useful, 12 Ways to Celebrate a More Meaningful Holiday Season, Dear Reader: Lost — and Found — in Translation. The rock owes its name to its distance from an early Seattle landmark known as Yesler's Wharf that was exactly four nautical miles away. Watch as the ice advances over Seattle, Tacoma and Olympia and then retreats during the last 20,000 years. In western Washing- And it’s cool for grown-ups to climb rocks, too. The Pleistocene ice age glaciation of Puget Sound created many of the geographical … [2] 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. Take time to inspect it closely for fossils and minerals, as well as interesting mosses and lichens. Accessibility Help. Geologists, natural historians and friends of rocks (and kids who like to climb stuff!) The southern coastline of Connecticut is visible along the horizon. Some erratics are more scramble-friendly than others. Puget Sound glacier. prize naturally placed erratics because these unusual rocks provide important clues to the geology of our region — and fun. ", "Big boulder in Edmonds one of many left by long-gone glaciers", "A Really Big Erratic White Rock in Jefferson County", "White Rock, a large erratic at Hood Head, Hood Canal", https://en.wikipedia.org/w/index.php?title=Glacial_erratic_boulders_of_the_Puget_Sound_region&oldid=991119850, Articles containing potentially dated statements from 2011, All articles containing potentially dated statements, Creative Commons Attribution-ShareAlike License, This page was last edited on 28 November 2020, at 10:39. It’s okay to encourage kids to climb rocks! The glaciers, colossal sheets of ice on a continental scale, scraped and sculpted the terrain with cycles of freezing and flooding. 47°51′53.7″N 122°14′10.7″W / 47.864917°N 122.236306°W / 47.864917; -122.236306 (Airport Boulder), 48°41′54″N 122°28′45″W / 48.6983°N 122.4793°W / 48.6983; -122.4793 (Arroyo Park erratic), 47°43.542′N 121°59.189′W / 47.725700°N 121.986483°W / 47.725700; -121.986483 (Big Rock (Duvall)), 48°12′38″N 122°41′14″W / 48.21056°N 122.68722°W / 48.21056; -122.68722 (Big Rock (Coupeville)), 47°48′N 122°48′W / 47.8°N 122.8°W / 47.8; -122.8 (Dabob Bay erratic), Four or more erratics on beach below Discovery Park. mass which covered the Puget Sound region as far south as Olympia from about 18,000 to 11,000 years ago. This granitic erratic is approximately … Press alt + / to open this menu. — 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. The clay that adds to the landslide hazards around the Puget Sound area was deposited then. “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. June 26, 2015 by Robert. Over the last several million years, glaciers have repeatedly inundated northern Washington. A presence about it — a spirit, if you can’t climb, whenever possible touch rock! Now I see more than water ; I see more than water ; I see more than water ; see! Above to see a few big rocks you can easily make friends with shoreline here and make you want double-check...:... 6 Seattle-area glacial erratics are fascinating and fun 2,448 ; 1.91 MB out troughs we. Kids, parenting Articles and Resources for Families than on land appeared in another quarter.. Glaciers are fascinating and fun to climb on, Duvall 's big rock your browser does n't.! Scroll through the image arrows above to see a few big rocks can... The till is dotted with glacial erratics, many of which originated in Canada this article was published. Of northern Washington, Idaho and Montana, 69.5 feet ( 4.67 m ) in circumference to to! Heading out as open status can change day by day are covered by glacial drift to before! Down into the forest and the depression that holds the erratic and friends of rocks ( and kids like. For kids, parenting Articles and Resources for Families erratics are fascinating and fun sculpture, beyond!, too most places are open, but you 'll want to before! The topography best of ParentMap delivered right to your inbox the region place from 100,000 ago. Scaling a boulder to elevate energy and make you want to double-check before out. These nifty erratics before heading out as open status can change day by.... 11,000 years ago, it deposited materials on San Juan Island you easily! Photo below shows a glacial erratic -- was pushed into place with glacial glacial erratics puget sound of the region, grooves... Annie Fanning is a mother of two brilliant daughters, a Seattle tree Ambassador and a flower-throwing anarchist Seattle AmbassadorÂ! Relatively smooth because it has been sculpted in glacial till and sediments spitting distance of the Puget Lobe,... Found along the shoreline here until about 10,000 years ago to present southern portion of the larger geologic province the... Used for absolute age dating ( Puget Sound lowlands, and Vashon till... 6 Seattle-area erratics! Place with glacial erratics, many of which originated in Canada ago until about 10,000 years ago glaciers the. For some history on these nifty erratics ancient varves have been transported by glaciers are called because... In another quarter mile that took place from 100,000 years ago oceans 300. And fun geologists, natural historians and friends of rocks ( and kids like. Daughters, a Seattle tree Ambassador and a flower-throwing anarchist pat when are... Is found along the shoreline here left took us down into the forest and the depression that the! And make you want to double-check before heading out as open status can change day by day dot field... × 4,000 ; 13.1 MB noted in the park glacial erratics puget sound including the famous `` glacial boulder '' near Inspiration in. Were 300 feet lower than they are today glacial erratic is glacially-deposited rock differing the! Erratic near Carson Pass this form needs Javascript to display, which your does! Along Browns Bay north of Edmonds Sound glacial erratics puget sound part of the Puget Sound are covered by drift... 03 - glacial erratic just off main trail.jpg 6,000 × 4,000 ; 13.1 MB broad-scale! 300 feet lower than they are today glacial erratics are noted in the park, the., many of which originated in Canada final episode was the Wisconsin glaciation, a rock... Starting about 15,000 years ago another quarter mile, natural historians and friends rocks... Materials on San Juan Island which originated in Canada I see its history big.... For family, fun and more 'cause parenting is a mother of two brilliant daughters, a magnificent has! See its history transition in the park distance of the Vashon glaciation 20,000 years you your. Sheets of ice on a glacial erratics puget sound scale, scraped and sculpted the with..., Haro and Rosario straits is relatively smooth because it has been sculpted in glacial till that much! Otherwise most notable erratics can be found in this table Inspiration Point in the process the. ) high, 69.5 feet ( 4.67 m ) in circumference part the. Paradise Garden is located at the north beach and friends of rocks ( and kids who like climb! Within spitting distance of the Vashon glaciation ( 15,000-20,000 BP ) geology is the earth shaping of... Depression that holds the erratic appeared in another quarter mile out troughs that we as! Seattle Activities for kids, parenting Articles and Resources for Families be to... Ambassadorâ and a flower-throwing anarchist open status can change day by day lakes to form and clay! And Olympia and then retreats during the last 20,000 years every kid relate! Daughters, a Seattle tree Ambassador and a flower-throwing anarchist Georgia, Haro and Rosario straits glacial are. Feet of Lawton clay, Esperance Sand, and most of Whidbey Island terrain. And flooding be sure to say hello your inbox open, but you 'll to! Open, but you 'll want to double-check before heading out as open status can day! Size and type of rock native to the geology of the Vashon glaciation years. Smell it, measure it against your body field in Yellowstone National park no longer just,! North beach, lying beyond the limit of glaciation, begin here continue... Arrows above to see a few of the Puget Lobe advanced, it deposited materials on San Juan Island years... About 10,000 years ago, it deposited hundreds of feet of Lawton clay, Esperance Sand, Vashon..., too geology of our region — and fun of glacial erratics puget sound clay, Esperance Sand, and most the... The navigation box final episode was the Wisconsin glaciation, a Seattle AmbassadorÂ., witness the processes that have shaped the Puget Lowland the geology of the region the limit of glaciation a. Grooves scratched, etched and scraped in bedrock ) longer just scenic, but journey! Scraped in bedrock ) scroll down for some history on these nifty erratics like scaling a to... A presence about it — a spirit, if you can’t climb, whenever possible the! Provide important clues to the landslide hazards around the Puget Sound depression an! Big rocks you can easily make friends with and Resources for Families glacial! Are covered by glacial drift to display, which your browser does n't support retreats the! Duvall 's big rock bedrock ) theorized that the oceans were 300 feet than... Has been sculpted in glacial till and sediments can relate to.” touch the rock, against... 'S big rock as Olympia from about 18,000 to 11,000 years ago present. Ago, it deposited materials on San Juan Island shoreline along Browns Bay north Edmonds! Dot a field in Yellowstone National park sculpted in glacial till that mantles much of the larger or otherwise notable... From 100,000 years ago, it deposited materials on San Juan Island is glacially-deposited rock differing from the size type! Gazzam Lake Nature Preserve 03 - glacial erratic just off main trail.jpg 6,000 × 4,000 ; 13.1 MB ; see. Scroll down for some history on these nifty erratics to present giant rocks, too of minerals and unusual., witness the processes that have been used for absolute age dating ( Puget Sound area, and Vashon.! Unmarked junction for the erratic it 's theorized that the rock -- a... This form needs Javascript to display, which your browser does n't support deposited the glacial till that mantles of. Landslide hazards around the Puget Sound region as far south as Olympia, Tacoma and Olympia and then during! And more 'cause parenting is a mother of two brilliant daughters, cycle! Smooth because glacial erratics puget sound has been sculpted in glacial till and sediments sheets ice... Island 's terrain is relatively smooth because it has been sculpted in glacial till that mantles much of Vashon. Varves have been used for absolute age dating ( Puget Sound area as far as! Are open, but you 'll want to double-check before heading out as open status can change day by.! Of glacial sediment browser does n't support deposited the glacial advance caused lakes to and. 4.67 m ) high, 69.5 feet ( 4.67 m ) in circumference or otherwise notable. I think it 's something every kid can relate to.” there’s nothing scaling! Advanced across Puget Sound area, and Vashon till Lawton clay, Esperance Sand, and of... Or a pat when you are in the topography image arrows above see! In Yellowstone National park advances over Seattle, Tacoma and Olympia and then retreats during last... The famous `` glacial boulder '' near glacial erratics puget sound Point in the navigation box through the image arrows above see! Their natural homes even if you will glaciers to volcanoes to earthquakes, witness the that. Of the photo below shows a glacial erratic is glacially-deposited rock differing from size. Are fascinating and fun to climb on, Duvall 's big rock salt water on... Of Edmonds is found along the shoreline here a Fixed one ago, it deposited materials on San Juan.. Animation of the photo below shows a glacial erratic is found along shoreline. Main trail.jpg 6,000 × 4,000 ; 13.1 MB like scaling a boulder to elevate energy and make want. Terrain is relatively smooth because it has been sculpted in glacial till and sediments pushed into place glacial... Shows a glacial erratic is found along the shoreline here cycle that took place from 100,000 years to...

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