The Land Tells the Story

The Land Tells the Story (HM1O5C)

Location: Yellowstone National Park, WY 82190 Park County
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Country: United States of America
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N 44° 57.655', W 110° 34.053'

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Inscription
The rocky outcropping in front of you tells part of a violent story of Yellowstone's volcano - one of the largest volcanoes on Earth.About two million years ago Yellowstone's volcano - so enormous that it is called a "super volcano" - exploded violently, coating the earth with ash for thousands of miles! Near the eruption, ashfall buried the ground in deep layers. Then the ash became compressed or "welded," creating a layer of rock now called "Huckleberry Ridge Tuff."Yellowstone's super volcano erupted two more times. The most recent eruption left a gigantic crater, or caldera, in the heart of Yellowstone. This massive caldera, about 30 miles wide and 45 miles long, was first verified with the use of satellite photography.Yellowstone's immense eruptions were many times larger than the catastrophic Mount St. Helens, Washington, explosion in 1980.< Sidebar : >Yellowstone's Big BlastsYellowstone's volcano is still alive today. Two dome-like areas rise and fall as magma moves beneath the park. Although geologists cannot predict when it will erupt again, these "resurgent domes" gives clues about the future.Did ash from a giant Yellowstone eruption cover where you live?
Details
HM NumberHM1O5C
Tags
Placed ByNational Park Service
Marker ConditionNo reports yet
Date Added Wednesday, September 23rd, 2015 at 9:03pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)12T E 534106 N 4978699
Decimal Degrees44.96091667, -110.56755000
Degrees and Decimal MinutesN 44° 57.655', W 110° 34.053'
Degrees, Minutes and Seconds44° 57' 39.3" N, 110° 34' 3.18" W
Driving DirectionsGoogle Maps
Area Code(s)307
Which side of the road?Marker is on the right when traveling West
Closest Postal AddressAt or near Grand Loop Rd, Yellowstone National Park WY 82190, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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