Cool find...

Fabulous.

"61 zulu, hanging tough"

Good find. It was a fun exercise following the threads of the company and aircraft shown in the video. The Wikipedia link sheds some light on why the twin otter was substantially damaged landing short in Laos in '72.

Wikipedia link about company: https://en.wikipedia.org/wiki/Intermountain_Aviation
Old accident report on Twin Otter in Laos: http://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=63671&key=0&queryId=fa5d9664-fd44-43c0-9dc7-390479522bf5&pgno=1&pgsize=50. The registration belongs to a 150 now. The PC-6's registration was cancelled in '68.

That landing at 7:20!