What does GU mean in Railroads?
This page is about the meanings of the acronym/abbreviation/shorthand GU in the Regional field in general and in the Railroads terminology in particular.
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What does GU mean?
- Guam, GU(adj)
- the largest and southernmost island in the Marianas which is administered as a territory of the United States; it was ceded by Spain to the United States in 1898