225 miles
It is 250.95 miles according to MapQuest.
Clinton MS (pop 25,000) is about 30 miles east of Vicksburg MS and 10 miles west of Jackson, MS.
The shortest route between Biloxi and Vicksburg is about 215 miles, mostly taking the US-49 N.
Google Maps estimates the driving time as 3 hours and 5 minutes.
about 2,493 miles (estimated 37.5 driving hours)
361 miles
The Siege of Vicksburg was fought in the vicinity of Vicksburg, MS.
The capital city, Jackson MS, is located on the Pearl River, about 40 miles east of Vicksburg MS.
It is 220 miles.
Jackson, MS, the state capital, is about 40 miles due east of Vicksburg. The smaller city of Clinton, MS is about 30 miles due east of Vicksburg (so don't change the question). Jackson is about 45 driving miles east of Vicksburg.
The address of the Vicksburg Transportation Museum is: 129 Hoxie Rd, Vicksburg, MS 39180-6340