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Historical Markers in Benton County, Washington
Prosser is the county seat for Benton County
Adjacent to Benton County, Washington
Franklin County (8) ► Grant County (16) ► Klickitat County (21) ► Walla Walla County (33) ► Yakima County (21) ► Morrow County, Oregon (3) ► Umatilla County, Oregon (69) ►
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May. 19, 2024