Glacial Ice Dam

Glacial Ice Dam (HM1E8L)

Location: Hope, ID 83836 Bonner County
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Country: United States of America
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N 48° 15.423', W 116° 19.507'

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Filled This Basin as Far as You Can See

— Glaciers moved south from Canada spreading across the lake and rivers —

Glaciers advanced and retreated a dozen times or more
Damming Glacial Lake Missoula
Bursting with gargantuan force
Flooding areas 400 miles away
Shaping today's landscape in Idaho, Washington and Oregon

Glacial ice above lake level.
Tall as a 200 story building above lake level
Rose 4 times as tall as Seattle's 605ft Space Needle
Total depth of ice may have exceeded 3,500 feet when reaching to the lake's rock bed

Only the mountains with peaks rising above 4,500 ft. in elevation would have been visible from top of the glacier.
HM NumberHM1E8L
Placed ByFederal Highway Administration, Idaho Transportation Department, University of Idaho, Hope-Clark Fork Chamber of Commerce Members
Marker ConditionNo reports yet
Date Added Monday, October 13th, 2014 at 8:58pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)11U E 550092 N 5345091
Decimal Degrees48.25705000, -116.32511667
Degrees and Decimal MinutesN 48° 15.423', W 116° 19.507'
Degrees, Minutes and Seconds48° 15' 25.38" N, 116° 19' 30.42" W
Driving DirectionsGoogle Maps
Area Code(s)208
Closest Postal AddressAt or near 353 Artemis Way, Hope ID 83836, US
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