The Battle of Richmond, Kentucky, fought August 29–30, 1862, was a stunning Confederate victory by Maj. Gen. Edmund Kirby Smith against Union Maj. Gen. William Nelson's forces, defending the town. It was the first major battle in the Kentucky Campaign. The battle took place on and around what is now the grounds of the Blue Grass Army Depot, outside Richmond, Kentucky.
The cache can be found at N34 31.947 w84 0x.219
X= the number of letters in the Union Commanders nickname; plus 1