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THE HISTORICAL
MARKER DATABASE
“Bite-Size Bits of Local, National, and Global History”
 
 
 
 
 
 
2 entries match your criteria.  

 
 

Historical Markers in Gilliam County

 
Clickable Map of Gilliam County, Oregon and Immediately Adjacent Jurisdictions image/svg+xml 2019-10-06 U.S. Census Bureau, Abe.suleiman; Lokal_Profil; HMdb.org; J.J.Prats/dc:title> https://commons.wikimedia.org/wiki/File:Usa_counties_large.svg Gilliam County, OR (2) Morrow County, OR (3) Sherman County, OR (4) Wasco County, OR (62) Wheeler County, OR (10) Klickitat County, WA (31)  GilliamCounty(2) Gilliam County (2)  MorrowCounty(3) Morrow County (3)  ShermanCounty(4) Sherman County (4)  WascoCounty(62) Wasco County (62)  WheelerCounty(10) Wheeler County (10)  KlickitatCountyWashington(31) Klickitat County (31)
Condon is the county seat for Gilliam County
Adjacent to Gilliam County, Oregon
Morrow County (3)  ►
Sherman County (4)  ►
Wasco County (62)  ►
Wheeler County (10)  ►
Klickitat County, Washington (31)  ►
 
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1 ► Oregon, Gilliam County, Arlington — Arlington Oregon Trail Kiosk —
2 ► Oregon, Gilliam County, Arlington — This Marks the Crossing of the Old Oregon Trail — Used by Pioneers and Settlers of the Oregon Territory — This Marker in Honor of W.W. Weatherford 1844 - 1926 —
 
 
  
  
  
 
 
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Nov. 13, 2026