U.S. Geography

What Nebraska landmark was most often mentioned in journal entries by travelers on the Oregon Trail?

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Which of these colleges are located in Idaho?
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What is the name of the famous gambling city in Nevada?
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Which popular Oregon tourist spot is a dormant volcano?
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Which US state is the smallest?
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Where can you find Independence Rock?
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Which South Carolina city did the British fail to conquer in a 1776 battle?
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What U.S. President is Houston's Space Center named for?
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Which queen was Marietta, Ohio's first permanent settlement, named after?
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