YAH -- The Gangplank, I-80 frontage road near Buford WY - 'You Are Here' Maps on Waymarking.com

This state historical marker about the interesting rock formations to be seen at this location is located along the I-80 frontage road in Buford WY.

This historical marker reads as follows:

"THE GANGPLANK

[inset topo map of the gangplank formation, with a YAH map]

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.

The Wyoming State Archives and Historical Commission
and Wyoming State Historical Society"

Location Name: The Gangplank

Visit Instructions:

A photo of either you or your GPS at the site is welcomed but not required.

Recent Visits/Logs:

Date Logged Log   01/12/2022 petendot visited it 06/27/2009 Benchmark Blasterz visited it

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