karlaa06 karlaa06
  • 21-12-2017
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What's the biggest obstacle for the railroads heading east from California?

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doghunt
doghunt doghunt
  • 21-12-2017
The biggest obstacle for the railroads heading east from California was the Sierra Nevada mountain range.
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AlmostNeverWrong
AlmostNeverWrong AlmostNeverWrong
  • 21-12-2017
The biggest obstacle for the railroads were :
Sierra Nevada 
Hope this helped!

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