(Articles by Jerry Penry)To view the many photos, maps and graphics that accompany each article, select the PDF version after arriving at the text-only page. The Line Between Sandstone & Quartzite
Unintentional Double Monumentation
State Surveys of the Great Depression
The Making of a Better Monument
The Harrison Marker CompanyRocky Mountain High
Finding the Western End of the 6th PM Base LineNGS Celebrates 200th Anniversary
$250 Fine or Imprisonment for Disturbing This Mark
End of the Line
Monumenting the Northern Terminus of the Sixth Principal MeridianMonument Memorials
The Father of Government Mapmaking
Henry Gannett
Illegal Fences of the Great Plains
Survey or No Survey: The Unlicensed Land Surveyor
Invar - The Breakthrough for a Low Expansion Alloy
The Missouri River Commission Survey
© Jerry Penry 2013