Celtic Ogham writing in the Southwestern US

Perhaps you have seen the Ogham (or Oggam) alphabet? Supposedly it was designed for messages written on a notched stick. Like this from Ancient Origins:

So, as far as I can tell, this writing system is common in the Southwest, because I keep seeing examples of it in videos. Like this one from "Trek Planner", who goes out in the desert near the 4-corners area and makes Go-Pro videos as he hikes and explores. Here is an example:

Now, I don't know how to read this, nor pretend that this form of the writing is identical to any I can find in Google image searches. But for my money, this is Ogham in Utah. I guess this makes me a UFO-ologist or a SASQUATCH-ologist. 

When things are said to have originated in Europe and only arisen in the US because of pre-historic voyaging, I routinely wonder if the flow might have been in the other direction: from the US to Europe. In this case, you wonder if anyone studies the history of Ogham, its variations and evolutions. Such a person might be asked to look at the above.

For reference, here is one version of the alphabet: