With respect to non-commercial operations the FAA doesn't care where you land as long as you don't create a hazard.
States, counties, cities and towns may have other ideas, i.e. rules and regulations. And even if they do, somebody has to a) notice, b) complain, and c) some authority has to care. I doubt you'd get (b) or (c) where he landed, and AFAIK there is no local authority in Rachel, if there are even any state/county/local ordinances that exist.
Finally, for private property one must have permission of the property owner.
As a helicopter pilot I am frequently faced with this issue. For instance, I was asked at the last minute by my flight school to land a helicopter at a local middle school as part of a "STEM" day. I was happy to do it and could find no town ordinances prohibiting it (there are no relevant state or county ordinances where I live). Nevertheless, I said I wasn't going until I had at least an email authorizing it from someone at the school. Because I sure did not want to wind up like
this guy. As luck would have it, and as everyone fully expected, it was no problem at all dropping it into the front yard of the school, and there were no police or fire trucks waiting. It was all a non-event except for the kids who thought that it was pretty cool, which is just what everyone wanted.
But that was a non-commercial operation. For Part 91 commercial operations you need to be operating under an FAA Letter of Authority (LOA). A typical op. like that would be helicopter rides at a fair. You have to have a plan, an approved temporary LZ, and it all needs to be spelled out in the LOA from the FSDO. A somewhat higher level of complexity, but by no means rocket science. Your insurance company might take an interest as well.
As for training, we seem to get away with just property owner permission, no formal LOAs. Thus confined space operations take place at a wide variety of "friends of the helicopter school" properties. We spread that joy around so as not to annoy the neighbors. Got to fly smart!