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3 entries match your criteria.  

 
 

Historical Markers in Calpine, California

 
Clickable Map of Sierra 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 Sierra County, CA (60) Lassen County, CA (46) Nevada County, CA (237) Plumas County, CA (121) Yuba County, CA (66) Washoe County, NV (105)  SierraCounty(60) Sierra County (60)  LassenCounty(46) Lassen County (46)  NevadaCounty(237) Nevada County (237)  PlumasCounty(121) Plumas County (121)  YubaCounty(66) Yuba County (66)  WashoeCountyNevada(105) Washoe County (105)
Downieville is the county seat for Sierra County
Calpine is in Sierra County
      Sierra County (60)  
ADJACENT TO SIERRA COUNTY
      Lassen County (46)  
      Nevada County (237)  
      Plumas County (121)  
      Yuba County (66)  
      Washoe County, Nevada (105)  
 
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1 California, Sierra County, Calpine — Crossing the Summit - Weather or Not
On Yuba Pass Road at California Route 49, on the right when traveling south on Yuba Pass Road.
In 1852 a pack trail was blazed from Sierra Valley over the summit to the placer mines of the North Yuba. Originally packers transported hay but within a few years this trade included beef, butter, barley, oats, hogs, and poultry. On April 24, . . . Map (db m99627) HM
2 California, Sierra County, Calpine — Food for the Mines — 49 Miles Along Highway 49
On Golden Chain Highway (California Route 49) at Yuba Pass Road, on the right when traveling east on Golden Chain Highway. Reported missing.
Hay was packed to Sierra City from Sierra Valley as early as 1852. Many of these pack trains used 50 to 75 animals. By the end of the decade, beef, butter, barley, oats, hogs and poultry products were being packed to west side. In 1870, the Yuba . . . Map (db m65989) HM
3 California, Sierra County, Calpine — Sierra Valley History
On Golden Chain Highway (California Route 49 at milepost 45.7), on the right when traveling east. Reported missing.
Sierra Valley was discovered in 1851 by James P. Beckwourth, a mountain man and entrepreneur who was searching for a northern route across the Sierra Nevada. The valley had been sighted a year earlier by prospectors exploring the nearby Sierra . . . Map (db m65990) HM
 
 
  
  
 
 
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Jun. 4, 2026