Firearms in the Park
As of February 22, 2010, a new federal law makes possession of firearms in national parks subject to the firearms laws of the state and communities where the parks are located.
Effective July 1, 2010, anyone with a concealed-weapons permit can legally carry firearms in Mississippi parks. However, no firearms, whether concealed or carried openly, are allowed in any National Park Service building.
Vicksburg National Military Park federal lands in Louisiana (Grant's Canal, Delta, Louisiana) —
No firearms, whether concealed or carried openly, are allowed in any National Park Service facilities in Louisiana (Federal law 18 USC 930). Facilities include buildings, structures, offices, and locations where ranger programs are conducted.As a starting point, please visit the following state websites: