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

 
 

Historical Markers and War Memorials in Lake County

 
Clickable Map of Lake County, California 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 Lake County, CA (28) Colusa County, CA (17) Glenn County, CA (10) Mendocino County, CA (46) Napa County, CA (101) Sonoma County, CA (178) Yolo County, CA (67)  LakeCounty(28) Lake County (28)  ColusaCounty(17) Colusa County (17)  GlennCounty(10) Glenn County (10)  MendocinoCounty(46) Mendocino County (46)  NapaCounty(101) Napa County (101)  SonomaCounty(178) Sonoma County (178)  YoloCounty(67) Yolo County (67)
Lakeport is the county seat for Lake County
Adjacent to Lake County, California
Colusa County (17)  ►
Glenn County (10)  ►
Mendocino County (46)  ►
Napa County (101)  ►
Sonoma County (178)  ►
Yolo County (67)  ►
 
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1 ► California, Lake County, Clearlake Oaks — Ranch House —
2 ► California, Lake County, Clearlake Oaks — 428 — Sulphur Bank Mine —
3 ► California, Lake County, Hidden Valley Lake — 450 — Stone House — State Historical Marker #450 —
4 ► California, Lake County, Kelseyville — 426 — Site of First Adobe Home, Lake County —
5 ► California, Lake County, Lakeport — 897 — Lake County Courthouse —
6 ► California, Lake County, Lower Lake — Clearlake Lodge #130 I.O.O.F. — Reported missing
7 ► California, Lake County, Lower Lake — Lower Lake Schoolhouse — Lower Lake Landmark —
8 ► California, Lake County, Lower Lake — 429 — Lower Lake Stone Jail —
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9 ► California, Lake County, Middletown — First Church in Middletown —
10 ► California, Lake County, Middletown — First Methodist Church Site —
11 ► California, Lake County, Middletown — 467 — Old Bull Trail Road and St. Helena Toll Road —
12 ► California, Lake County, Upper Lake — Bank of Upper Lake —
13 ► California, Lake County, Upper Lake — Bloody Island —
14 ► California, Lake County, Upper Lake — 427 — Bloody Island — Bo-no-po-ti —
15 ► California, Lake County, Upper Lake — Clear Lake Habitat —
16 ► California, Lake County, Upper Lake — Diamond Match Lumber Co. —
17 ► California, Lake County, Upper Lake — Drug and Prescription Store —
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18 ► California, Lake County, Upper Lake — Harriet Lee Hammond Library —
19 ► California, Lake County, Upper Lake — League's Store —
20 ► California, Lake County, Upper Lake — The Ice House —
21 ► California, Lake County, Upper Lake — The IOOF Hall —
22 ► California, Lake County, Upper Lake — The Livery Stable —
23 ► California, Lake County, Upper Lake — The Old Gas Station —
24 ► California, Lake County, Upper Lake — The Pomo —
25 ► California, Lake County, Upper Lake — The Tallman Hotel —
26 ► California, Lake County, Upper Lake — The West Side of Main Street —
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27 ► California, Lake County, Upper Lake — Upper Lake — Recapturing Its Vibrant History —
28 ► California, Lake County, Upper Lake — Upper Lake Through Time — Reported permanently removed
 
 
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Nov. 10, 2026