this looks like early February, and my guess would be a big salmon fly with a salmon egg and 1/4lbs of shot as a dropper on 8x tippet. and a 1 weight rod.
It was mid-July and we were using size 16 caddis tied with dark brown deer hair with olive green bodies. I had originally tied them for or trip to upstate New York but they worked great here!
Loved the video...but for God's sake, please take your palm/fingers/hands off your reel when you are bringing the fish in! Dude, use your reel's drag as it was designed :)