“I’m hung up.” My brother looked back from the bow of the drift boat then picked up line to cast while I bent the rod deep and gave a few jerks. We were anchored at the head of a long cut bank along the Big Hole river. Wet grass dried in the breeze and a grey sky rolled against the hills beyond the bank. I needed a long cast upstream and quick mends to get the flies down and I had been bumping bottom here and there since we stopped. My father watched from his hunched forward position while I worked to get free from above him. Nothing doing. I reeled in all my line and grabbed it tight, then repositioned my efforts with the rod to work angles that might free the hook. Satisfied with my best efforts I stood resigned to break off and lose the flies. In that moment the taught line slid. A few inches maybe, but upstream. I was quiet, and then, “I can’t be hung up. The line just moved.”