You found a mysterious map among the remains of a spirit of Burnside. It looks like the treasure is just west of the graveyard up a hill. The eXclamation point on your map (press 'M') marks the spot.
The Old Boots can be found in a mound of rubble, on the bluffs overlooking the Burnside graveyard. -- (/loc -2995, 59, 355)
On Completion[]
I was killed for these spurs! Those no good, murderin' scoundrels... well, they killed each other after stealin' ma boots. Thankee for returnin' 'em to thier rightful owner.