Over the past few months, I’ve seen similar yellow posts stuck in the ground in varying locations around where I live. The posts appear to be hollow, coming up out of the ground about 4 feet or so and with a sharp angled bend at the top of the post. (Note: I’ve just started noticing the posts; they don’t appear to be recently constructed.)
A number of these posts have what appears to be a marker or ID number over the post.
Does anyone know what these are for?
I’ve also seen these — no idea what they are for.
Ideas anyone?