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Fort Union National Monument

Special Tours At Fort Union National Monument Offer Rare Chance To Visit Site Of The First Fort Union

Fort Union National Monument is home to what was once the largest military post west of the Mississippi River, but only adobe and stone ruins now remain on the New Mexico prairie. These surviving walls are actually part of the third Fort Union, and September 20, 2014, you can join rangers for a special, once-a-year chance to visit to the site of the First Fort and Arsenal.

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