That’s not a trout, it a sturgeon in speckled camouflage!
If she caught that fish on the South Fork of the Snake River it’s no sturgeon in a brown Suit. The sturgeon native in the Snake River stop at Twin Falls Idaho. fish and Game have planted sturgeon above Twin Falls but below the North Fork and South Fork merger. I’d like to know what she was fishing with. That thing on a fly rod would be amazing.