From the Youtube video description

I was skiing when my friend gets off balance and ends up hanging from the chair. He did not have the security bar down. He hung from about Pole 8 to 21, and at 21 he fell. This was on a lift that averages 37ft above the ground, But pole 21 was the 3rd highest strech at about 45ft high, 19 being the highest. He suffered from injuries including: concussion, skull fracture, collapsed lung, and a lacerated liver.

He had to be helicoptered out to a local hospital.

There have been quite a few questions about where his board went, he unhooked it (I have no idea how snowboards work I ski) he hung with hand to do this. He did this to gain some sort of grip or something. Obviously that didn’t work.