History, 20.09.2019 19:10 vanessacasillas452

Which describes a major challenge facing the builders of the transcontinental railroad?
tunneling under lake erie
crossing the sierra nevada mountains
bridging the rio grande river
spanning the grand canyon

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Which describes a major challenge facing the builders of the transcontinental railroad?
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More questions: History Another questions

Which describes a major challenge facing the builders of the transcontinental railroad? tunneling under lake erie crossing the sierra nevada mountains bridging the rio grande river spanning the grand canyon

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Another question on History

Which describes a major challenge facing the builders of the transcontinental railroad?
tunneling under lake erie
crossing the sierra nevada mountains
bridging the rio grande river
spanning the grand canyon