I have found that orange marking paint works well and lasts well. I don't want to give you bad advise not sure of doing this on public ground as painting on a tree would be legal. I started using this paint on my own property 3 years ago and still there. I had an old tower stand that I removed the stand part with my bobcat and placed on the ground a couple years prior to that. Until reading the posts on here I was wrong with what I was doing just never gave it thought, but then fixed myself. Its the only ground blind I have the rest are elevated not requiring it.