Pesky trees and Power poles
Its normal to find few, if any, of a properties monuments. After all, that is why they are calling for a survey. Get busy, find some remote monuments, and put Humptey-Dumptey back together again.
Found a good amount of monuments around. My plan is to reset the leaners and then calculate the point of the corner that falls in the middle of the tree. I've heard some say that I should let the leaners stay where they are. (I'm kinda of the mindset that I should leave the situation in better condition than I found it.)
The tree is the monument. To verify that, there are two or three adjacent lots that also share that monument, it is typical to locate corresponding monuments on those lots also, then use the preponderance of the evidence. If you recalculate your lots measurements you are also changing adjacent lots. Go back and finish your job. A rode sticking 2 feet out of the ground is a marker that says the corner is near hear. That is it is a monument to a monument.
Paul in PA