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The Line Between Sandstone & Quartzite
Unintentional Double Monumentation
State Surveys of the Great Depression
The Making of a Better Monument
Rocky Mountain High
NGS Celebrates 200th Anniversary
$250 Fine or Imprisonment for Disturbing This Mark
End of the Line
Monument Memorials
The Father of Government Mapmaking
(Articles by Jerry Penry)
The Harrison Marker Company
Finding the Western End of the 6th PM Base Line
Monumenting the Northern Terminus of the Sixth Principal Meridian
Henry Gannett