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

 
 

Historical Markers in Plymouth

 
Clickable Map of Benton County, Washington 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 Benton County, WA (56) Franklin County, WA (26) Grant County, WA (25) Klickitat County, WA (31) Walla Walla County, WA (45) Yakima County, WA (26) Morrow County, OR (3) Umatilla County, OR (78)  BentonCounty(56) Benton County (56)  FranklinCounty(26) Franklin County (26)  GrantCounty(25) Grant County (25)  KlickitatCounty(31) Klickitat County (31)  WallaWallaCounty(45) Walla Walla County (45)  YakimaCounty(26) Yakima County (26)  MorrowCountyOregon(3) Morrow County (3)  UmatillaCounty(78) Umatilla County (78)
Prosser is the county seat for Benton County
Plymouth is in Benton County
Benton County (56)  ►
ADJACENT TO BENTON COUNTY
Franklin County (26)  ►
Grant County (25)  ►
Klickitat County (31)  ►
Walla Walla County (45)  ►
Yakima County (26)  ►
Morrow County, Oregon (3)  ►
Umatilla County, Oregon (78)  ►
 
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1 ► Washington, Benton County, Plymouth — McNary Dam Tetrahedrons —
2 ► Washington, Benton County, Plymouth — Strangers "from the clouds" — Reported unreadable
 
 
  
  
  
 
 
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Nov. 13, 2026