Trying to find an old post

A good while ago, someone posted a video of an aerial shot of a stretch of land on to which they had composited a big huge meteor crater.  And I think just recently a still image of it was posted but for the life of me I cannot find them in the forum!  I have a idea kicking around in my brain and I want to kibbutz with the poster and possible discuss borrowing the original footage since I don't have a good drone for such shooting; I thought it was either @Graymotion or @Stargazer54 but searching Gray's user gallery didn't turn it up and I can't find 'Gazer's...yet.  Any hints are most welcome.