I thought that I would give my input on this thread after thoroughly researching the area for some years regarding the Confederate service of a few of my direct ancestors who were positioned and fought there for an extensive amount of time during the ACW. Three of my Great Great Grandfathers fought at Corinth, Farmington, Rienzi, Iuka and Waterford in 1862, two of them with the 36th Mississippi Infantry Regiment and the other with the 40th Mississippi Infantry Regiment.
My 3rd Great Grandfather, with the 2nd Alabama Cavalry Regiment fought a plethora of battles, skirmishes and actions in numerous locations throughout the Mississippi Delta from 10 Apr 1863 to 27 Aug 1863 while part of Brig. General Daniel Ruggles` First District, Department of Mississippi and East Louisiana, and then under Brig. General Samuel Wragg Ferguson`s Cavalry Brigade from 28 Aug 1863 - 28 Jan 1864, operating first out of Camp Johnston near Camargo, Ms. and then at Prairie Mount, 5 miles north west of Okolona. At this time the 2nd Alabama Cavalry Regiment (Col. R. G. Earles), the 56th Alabama Partisan Rangers (Col. Boyles), Inge`s Regiment Mississippi Cavalry (12th Mississippi Cavalry Regiment) and the 2nd Tennessee Cavalry Regiment (Col. Barteau), were operating side by side with Brig. General Chalmers` Cavalry Brigade, Brig. General Roddy`s Cavalry Brigade and a lot of Gholson`s Mississippi State Cavalry Troops, to include Ham`s and Ashcraft`s Regiments, all across the Mississippi Delta, as well as into south-western Tennessee and north-western Alabama and then returning back to their base camps near Okolona.
My 3rd Great Grandfather with the 2nd Alabama Cavalry Regiment made numerous entries into his journal regarding locations of their fights, skirmishes, actions and patrols in the Mississippi Delta from 10 Apr 1863 - 28 Jan 1864. Some of those being at: Okolona, Prairie Mount, Pontotoc, Ripley, New Albany, Houston, Sparta, Panola, Holly Springs, Oxford, Melton, Gun Town, Molino, Cotton Gin Port, Jacinto, Baldwin, Saltillo, Ellistown, Buncombe, Wallersville, Fulton, Bay Springs, Ruckersville, Palmetto, Verona, Tupelo, Kings Creek at Blacklands, Buena Vista, Aberdeen, Palo Alto, West Point, Columbus, Starkville, Athens, Egypt, Town Creek, Camargo, Randolph, Chesterville, Birmingham, Campbelltown, Cairo and Rocky Ford to name a few of the places. He gave exact distances traveled between towns and the length of stay.
There was a lot of fighting up in the Mississippi Delta during this timeframe. If you want a really good account of it all I recommend that you read the Diary of Samuel Andrew Agnew (1833 - 1902), a resident and civilian in New Albany, Mississippi up in the Mississippi Delta who kept a very detailed daily journal and gave a day to day account of the fighting that went on around him during the War. I found it quite useful in my research and another source with which I could validate and confirm what my 3rd Great Grandfather wrote in his journal regarding fights, skirmishes, actions and locations. Andrew Agnew kept his diary from 1851 until his death in 1902 but of most interest to you would be folders 7-10 from October 1861 - December 1865. Follow the link and you will have access to them all, there are thumbnails of the original journal pages from which you can read.
https://finding-aids.lib.unc.edu/00923/
Photo below: Samuel Andrew Agnew (1833 - 1902).
Below is a great map showing Jackson, Ms. northward through the Mississippi Delta from 1862 showing some of the areas of which I wrote and where they are located in relation to one another.