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Historical Markers in Sequim, Washington

 
Clickable Map of Jefferson 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 Jefferson County, WA (78) Clallam County, WA (19) Grays Harbor County, WA (16) Island County, WA (46) Kitsap County, WA (27) Mason County, WA (5) San Juan County, WA (6)  JeffersonCounty(78) Jefferson County (78)  ClallamCounty(19) Clallam County (19)  GraysHarborCounty(16) Grays Harbor County (16)  IslandCounty(46) Island County (46)  KitsapCounty(27) Kitsap County (27)  MasonCounty(5) Mason County (5)  (6) San Juan County (6)
Port Townsend is the county seat for Jefferson County
Sequim is in Jefferson County
Jefferson County (78)  
ADJACENT TO JEFFERSON COUNTY
Clallam County (19)  
Grays Harbor County (16)  
Island County (46)  
Kitsap County (27)  
Mason County (5)  
San Juan County (6)  
 
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1 Washington, Jefferson County, Sequim — Discovery Bay
On May 2, 1792. the intrepid English explorer, Captain George Vancouver, in search of a northwest passage, sailed his sloop Discovery and the armed tender Chatham down the strait of Juan de Fuca and into this sheltered harbor. This bay Vancouver . . . Map (db m177417) HM
2 Washington, Clallam County, Sequim — How Did the Station Get Supplies?
Lighthouse tender boats supplied the Station by traversing Dungeness Bay from the mainland. At least four docks were built over the years. They were often destroyed by storms. The original dock was constructed circa 1857. It is unknown if . . . Map (db m129695) HM
3 Washington, Clallam County, Sequim — New Dungeness Light Station History
Approximately 10,000 years ago Dungeness Spit began to form. The Spit is formed from sand and gravel from the Olympic Mountains carried by the Dungeness River into Dungeness Bay. Debris is also sloughed off the bluffs to the . . . Map (db m129716) HM
 
 
  
  
 
 
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Sep. 5, 2026