Even in retirement, ol' Number 4004 remains an imposing sight. The world's largest steam locomotive, this powerful coal-fired engine was designed to pull a 3600-ton train over steep grades between Cheyenne, WY, and Ogden, Utah. The 4004 is one of the eight remaining Big Boys throughout the country.

The engine is on display year-round in the southeast corner of Holliday Park. You can park your car in the lot accessible from East 17th Street and Morrie Avenue.

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