When booking a trip from Nepal to Lhasa, the capital of Tibet, you have the option of taking a 1 day detour via the Mt. Everest base camp and although I didn’t take that detour when I was there, I did stop on the side of the road to take a few shots of the road sign. Besides that, there’s not much I could tell you about this particular image.
The processing was fairly simple, using the black and white conversion with a yellow filter and then bumping the contrast with 2 curves, one for the whole image and one just for the road sign.