The bluff, or high land, follows the left bank of the Yazoo for some distance and continues in a southerly direction to the Mississippi River, thence it runs along the Mississippi to Warrenton, six miles below.

The Yazoo River leaves the high land a short distance below Haines' Bluff and empties into the Mississippi nine miles above Vicksburg.

Vicksburg is built on this high land where the Mississippi washes the base of the hill.

Haines' Bluff, eleven miles from Vicksburg, on the Yazoo River, was strongly fortified.
The whole distance from there to Vicksburg and thence to Warrenton was also intrenched, with batteries at suitable distances and rifle-pits connecting them.
From Young's Point the Mississippi turns in a north-easterly direction to a point just above the city, when it again turns and runs south-westerly, leaving vessels, which might attempt to run the blockade, exposed to the fire of batteries six miles below the city before they were in range of the upper batteries.

Since then the river has made a cut-off, leaving what was the peninsula in front of the city, an island.
North of the Yazoo was all a marsh, heavily timbered, cut up with bayous, and much overflowed.