They might have placed the Wagoneer there, by dropping it down from a helicopter. Anyone purposely driving it to that location would have to have nerves of steel. There are such persons driving buses in the Third World, though
That's true. I've seen footage of some of those roads before. They are incredibly perilous. The thing that makes them crazy though is the apparent "devil may care" attitude many of the drivers posses.
Something's bugging me......... Waaaaay back around 1959 - 1960 or so (I think), I remember as a kid being home one day and watching a game show on TV - maybe 'Price is Right', but I'm not positive. One of the prizes was this very unusual pop-up camping trailer. It was sort of an elongated tear-drop shape, maybe 18' long, single rear wheels, with the entry door at the rear. It was all Fiberglas construction, with the 'hinge point for the upper part at the front. You would pick up the rear, and then set up the door opening. It looked very futuristic for the time. I came across on the internet ONE picture someone took of one sitting in a yard, but I've lost track of that source. Also remember reading a comment next to that pic where someone told what it was, and mentioned very few were built.
Sounds like you're describing a Teardrop trailer. I believe they were pretty common in the early days of motoring with a number of different outfits manufacturing them. I think they fell out of vogue post war as the cars got bigger and more powerful. Interestingly enough they are making a bit of a comeback due to the adventurous CUV owners out there. There is at least one modern RV manufacturer that offers brandnew teardrop trailers. https://littleguytrailers.com/
What I saw was quite different from the typical small 'teardrop' trailer you pictured. It appeared to be fiberglas in construction, was about 18' long, give-or-take, had an upper body that lifted up in the back. The part that semi-resembled a teardrop was sort of the rounded front area. It had some aspects of these trailers: The construction of the outer shells looked similar to that used on this trailer: The roof and part of the upper sides were hinged at the front, and it had a rear door, similar to this one: ................................................................................................ BIG 'OOPS'.................... I forgot I had saved a copy of the pic when I saw this one the last time I looked for it. Here it is: I know it doesn't look like much all closed up, but that upper part raises up from the front hinge point, and solid panels drop in to fill the gap created. It's basically a hard-sided tent trailer.
I heard that the entire highway was carved out by prisoners of war of some kind. Back then, the road must have only been planned for horses and buggies. Well over a century thereafter, they've never gotten around to widening and securing it enough to where vehicles and their passengers would stop taking shortcuts over the edge. Over here in Europe, they've been carving tunnels through mountains. I guess, if a certain foreign government stops interfering in these countrie's internal affairs, they can then trade some of that marching powder for a tunnel drill
There's also a few places here in the Pacific Northwest where we've used tunneling machines (Seattle, mainly), and sometimes, I wonder if anyone in charge had been using some of that powder.