The Gangplank

The Gangplank (HM1QFG)

Location: Cheyenne, WY 82009 Laramie County
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Country: United States of America
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N 41° 5.928', W 105° 6.755'

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The granite rocks to the west are more than a billion years old (Pre-Cambrian in age). The sedimentary rocks to the east are some 10 million years old (Late Miocene in age). After the mountains were elevated, some 20,000 feet of rocks were eroded from their crest. Later the younger sedimentary rocks were deposited against the flank of the range.
The time between the formation of the granite to the west and the deposition of the onlapping sediments to the east is measured in terms of more than ten hundred million years. You are now standing on the gangplank.
Placed ByWyoming State Parks & Cultural Resources
Marker ConditionNo reports yet
Date Added Sunday, January 10th, 2016 at 1:01pm PST -08:00
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Locationbig map
UTM (WGS84 Datum)13T E 490545 N 4549730
Decimal Degrees41.09880000, -105.11258333
Degrees and Decimal MinutesN 41° 5.928', W 105° 6.755'
Degrees, Minutes and Seconds41° 5' 55.68" N, 105° 6' 45.3" 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 I- 80 Srv Rd, Cheyenne WY 82009, US
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