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It introduces mountains, forests, waterfalls, bison, elk, moose, and deer, then explains how a massive volcanic eruption shaped the park over millions of years. The narrative covers hot springs, sulfur-lined pools, Old Faithful’s predictable geyser cycles, bubbling mudpots, and Roaring Mountain steam vents, emphasizing safe walking paths and ranger guidance about bears, especially grizzlies.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":10,"@type":76,"position":81},"https://docshare.wps.com/document/story-novel/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/a-blast-from-the-past-yellowstone/420945/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/a-blast-from-the-past-yellowstone/420945.png","ImageObject",300,407,{"name":92,"@type":93},"RuangKosong","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-31","2026-09-28",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",12,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"Where is Yellowstone National Park located and when did it become a national park?","Question",{"text":113,"@type":114},"Yellowstone is mostly in the state of Wyoming. It became the world’s first national park in 1872.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How were Yellowstone’s landscapes and geothermal features formed?",{"text":118,"@type":114},"A huge volcano erupted millions of years ago, leaving a large hole in the ground and covering much of the western United States with ash. Over time, the land shaped further, creating hot springs, geysers, and other features.",{"name":120,"@type":111,"acceptedAnswer":121},"What makes Old Faithful special and how often does it erupt?",{"text":122,"@type":114},"Old Faithful is one of thousands of geysers. It erupts about every sixty to ninety minutes, spraying a column of hot water high into the air for several minutes.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},420945,1790822006,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":8,"category_name":10,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":46,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},962090883219,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","YellowstoneABlast Grom the Pasd  \nby Donna RichardsonSHarcourt  \nSCHOOLPUBLISHERS  \n# A Blast from the Past\n\nby Donna Richardson  \nHarcourt  \nSCHOOL PUBLISHERS  \nCover,p.3,OPhotoDisc/Punch Stock;p.5,p.9,OCorbis;p.6,OPhotoDisc;p.7,p.8,ONational ParkService;p.10,(tr)@John C.Stevenson/Animals Animals,(I)ONational Park Service;p.11,  \n(tl)CLeonard Rue Enterprises/Animals Animals,(r)CTheo AlloffsVisuals Unlimited;p.12,CKennanWard/CORBIS;p.13,OToyohiro Yamada/Getty Images;p.14,OLewis Kemper/Stone/Getty Images.  \nCartography,p.4,Joe LeMonnier  \nCopyright ◎by Harcourt,Inc  \nAll rights reserved.No part of this publication may be reproduced or transmitted in any form or byany means,electronic or mechanical,including photocopy,recording,or any information storage andretrieval system,without permission in writing from the publisher.  \nRequests for permission to make copies of any part of the work should be addressed to SchoolPermissions and Copyrights,Harcourt,Inc.,6277 Sea Harbor Drive,Orlando,Florida 32887-6777.Fax:407-345-2418.  \nHARCOURT and the Harcourt Logo are trademarks of Harcourt,Inc.,registered in the United Statesof America and/or other jurisdictions.  \nPrinted in China  \nISBN 10:0-15-350988-0  \nISBN 13:978-0-15-350988-9  \n## Ordering Options\n\nISBN 10:0-15-350601-6(Grade 4 On-Level Collection)ISBN 13:978-0-15-350601-7 (Grade 4 On-Level Collection)ISBN 10:0-15-357941-2(package of 5)ISBN 13:978-0-15-357941-7(package of 5)  \nIf you have received these materials as examination copies free of charge,Harcourt School  \nPublishers retains title to the materials and they may not be resold.Resale of examination copies is  \nstrictly prohibited and is illegal.  \nPossession of this publication in print format does not entitle users to convert this publication,or  \nany portion of it,into electronic format.  \n10007H  \n\n| n   |\n| --- |\n|  |\n\n(  \nThe morning sun peeks out over a landscape thathas been much the same for thousands of years.  \nMountains and valleys stretch for miles.Ancient forestshave trees that have turned to stone.Pine forests arehomes to bears,squirrels,and chipmunks.Through thetrees,visitors can hear the hissing of spouting water.The land is called Yellowstone National Park.  \nYellowstone is a magnificent place.There are manywaterfalls cascading into deep canyons of rock.Herdsof bison dot the land.Elk graze in the green fields.Moose and deer wade through flowing streams.  \nEach year millions of visitors from all over the worldmake the trip to Yellowstone National Park,locatedmostly in the state of Wyoming.Yellowstone becamethe world's first national park in 1872.  \nA visit to the park helps people understand manyof the forces that take place in the Earth.The wondersat Yellowstone were formed millions of years ago whena huge volcano erupted.Ash covered much of thewestern United States.The eruption left a hole in theground 30 miles(48 km)long and 45 miles(72 km)wide.This huge hole was the beginning of Yellowstone.  \nThe land took shape over many millions of years.Visitors today can see the results of the greatvolcanic eruptions that happened millions of yearsago.Hot springs bubble with steaming water that risesthrough the cracks of rocks.Visitors walking throughthese parts of the park must walk along roped offpaths.To walk near the hot springs could be dangerous!  \nPools of water have formed in some of these hotsprings.The clear water glistens.The bottoms of somepools of water are lined with sulfur,a yellow substancefound in the Earth.The blue water and yellow sulfurmake the pool a sparkling green.  \nVisitors may first stop at one of the park's mostfamous spots,Old Faithful,only one of Yellowstone'sthousands of geysers.A geyser is an undergroundhot spring in which water boils.The pressure from theboiling water regularly sends a column of hot water highinto the air.  \nVisitors to Yellowstone will see more geysers herethan anywhere on Earth.Old Faithful goes off aboutevery sixty to ninety minutes.Each time,it sprays itssteaming ","cbCaio62Pj4JTr9A","https://ap.wps.com/l/cbCaio62Pj4JTr9A","pdf",1865690,"English","# Ordering Options\n## Yellowstone National Park\n## Geothermal Wonders\n## Safety and Wildlife","[{\"question\":\"Where is Yellowstone National Park located and when did it become a national park?\",\"answer\":\"Yellowstone is mostly in the state of Wyoming. It became the world’s first national park in 1872.\"},{\"question\":\"How were Yellowstone’s landscapes and geothermal features formed?\",\"answer\":\"A huge volcano erupted millions of years ago, leaving a large hole in the ground and covering much of the western United States with ash. Over time, the land shaped further, creating hot springs, geysers, and other features.\"},{\"question\":\"What makes Old Faithful special and how often does it erupt?\",\"answer\":\"Old Faithful is one of thousands of geysers. It erupts about every sixty to ninety minutes, spraying a column of hot water high into the air for several minutes.\"}]","A Blast from the Past - Yellowstone | PDF",1790623208,31]