I’m sure this was on BB a long time ago but too much work to find. I’m sure it referenced this BBC documentary about Yellowstone (there were episodes about each season of the year, I think) and this is an extract from one of the episodes…
Ignore the speeded up first minute or so. IIRC the documentary’s narration discusses why he spends the winter there, pretty alone, and this is part of his duties. (Can’t listen to the YT extract right now.)
ETA: LOL - It was me who posted about it in the discussion thread about Japanese snow roof clearing.