Falling Off Black Bear Pass
The part of the video showing the accident is only about five seconds long. It gets played a couple times and once in slow motion at the end. But the first few minutes of the video shows what the terrain is like. Doesn't look any worse than the road up to South Park Canyon or down Lippincott, but it is a narrow road cut into a steep slope.
TELLURIDE NEWS:
https://www.telluridenews.com/news/article_798385de-0d9a-11eb-9b66-ef8b24d50673.html