There's not one. They are all considered public places. If you have actually read the law you should know that.

If they ask you to leave and you don't, then you're liable to be charged with criminal trespassing and a fine might follow if it is pursued by the landowner... just like walking down a railroad that ain't posted. The landowner or his agent can tell you to leave.

If you're going to argue the law, you need to read it and try to comprehend what you read. Just pulling things out of your rear end don't cut it.

9-11-257 does not deal with trespassing. Until you get past that notion, you're not going to understand the problem.