Observation Point Marking
The flags are helpful but somewhat distracting. Plus many OP end up in the middle of paths or other mown places and the flag becomes an issue becuase the OP has to be the same next year. I created permanent markers similar to the way survey markers are put in. An iron rod pounded in to the ground with the top below the surface and the a cement collar and cover put over it that is level with the ground.
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left to right: water, mortar mix (i.e. only a little fine sand), spatula for mixing, applying, and smoothing, heavy hammer, junk screw driver to write with, iron pipe, trowel, pad for knees, stirring stick and digging tool. Have cut into earth in circle around flag with trowel.
Iron pipe pounded in. About an inch of it for the cement to stick to and about an inch or two above that to fill.
Before the cement sets, use something to mark with the OP number. This is about 3 and half inches in diameter, just barely big enough to do two digits. I noticed that survey markers usually are much bigger.
