If it is public land, and if you are there first in the morning, you can hunt anywhere you want. Just because the guy puts up a stand, doesn't mark it as his territory. It is public land. I would not use his stand however, it is his property. If I set up a stand on public land, and somebody got to the area earlier than me, then I would hunt elsewhere.

That being said, your stand looks far enough that you could probably hunt it anyway, even if he is there. Can you see his stands from your location?

Put the shoe on the other foot, inotherwords imagine you had tree stands out there, and somebody wants to put a stand up 130 yards from your stands, how would you feel? That usually answers the question. Sometimes it's best even to talk about it, so that your stand doesn't get stolen, or sabotaged, etc.

Just my rambling,

-c_str