Volcanic Calderas

Volcanic Calderas (HM1YMO)

Location: Ashton, ID 83420 Fremont County
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Country: United States of America
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N 44° 11.032', W 111° 26.177'

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Volcanic Calderas

Some 2,000,000 years ago, massive eruptions of hot rock boiled for 60 miles from this high rim on across Yellowstone Park.
An exceptionally large crater remained when that lava surface collapsed. Another smaller caldera followed north of here about 1,300,000 years ago. Yellowstone's geysers and hot springs continue to spout as remnants of those volcanic displays formed as underground rock gradually moves westward across a tremendous source of interior heat.
Placed ByIdaho Historical Society & Idaho Transportation Department
Marker ConditionNo reports yet
Date Added Tuesday, May 30th, 2017 at 9:01pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)12T E 465129 N 4892387
Decimal Degrees44.18386667, -111.43628333
Degrees and Decimal MinutesN 44° 11.032', W 111° 26.177'
Degrees, Minutes and Seconds44° 11' 1.92" N, 111° 26' 10.62" W
Driving DirectionsGoogle Maps
Area Code(s)208
Which side of the road?Marker is on the right when traveling North
Closest Postal AddressAt or near 2151 US-20, Ashton ID 83420, US
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