U.S. Geography

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

More Questions from U.S. Geography
Which of these states had the fewest people residing within its borders at the start of the 21st century?
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What year was the Theodore Roosevelt National Park in North Dakota established?
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What city or place is Andrew Carnegie Mansion in?
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Which of the following deserts is located in the United States?
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Where were Jacqueline Bouvier Kennedy and John F. Kennedy married?
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Illinois was a part of what territory until 1809?
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Which dairy product is Wisconsin famous for?
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Where was Kansas native Amelia Earhart born?
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