Lower Mississippi River Museum, River navigation museum in Vicksburg, United States

The Lower Mississippi River Museum is a maritime museum on the Mississippi riverfront in Vicksburg, opened in 2012. Its exhibits include an orientation theater on how the river has changed, a display on the 1927 flood, and an aquarium of fish native to the river. On the grounds sits the MV Mississippi IV, a dry-docked Corps of Engineers towboat and inspection vessel.

The Water Resources Development Act of 1992 authorized the Lower Mississippi River Museum and Riverfront Interpretive Site in Vicksburg. Planning was carried out in consultation with the Smithsonian Institution, and interpretive programs with the Department of the Interior and the National Park Service. The museum opened in 2012 on the Mississippi riverfront, and on September 26, 2007 the decommissioned towboat M/V Mississippi IV had already been moved onto the grounds as its centerpiece.

The museum displays how communities along the river developed their lives and work over time, with interactive exhibits showing what daily routines looked like for people who depended on the water. These presentations help visitors understand the river's role in shaping settlements and livelihoods.

The museum stands on the Vicksburg riverfront at the site of the former Mississippi river bridge, with the dry-docked M/V Mississippi IV berthed on land beside the building. Visitors can board the vessel and move through its four deck levels, from the main deckhouse up to the pilothouse. The riverfront interpretive site links the museum to the adjacent Mississippi River.

The displayed boat is a retired working towboat that actually operated on the river and still bears real marks from decades of use. This authenticity gives visitors a direct look at what actual river work involved.