A few years ago on the upper Madison river south of Ennis, Montana a guide and angler spotted a massive brown trout drifting dead down the river. Naturally they pulled it out and took photos with it as if they had caught it on a fly pole. I had heard about the fish and seen the photo above but only recently came across this article with all the details on the beast. How big was it? According to the article:
"After inspection by Montana Fish, Wildlife & Parks it was determined that the fish’s living dimensions were 28-inch girth and 38-inch length and that it weighed between 34 and 36 pounds!"
http://www.montanaoutdoor.com/2013/08/megasaurus-dino-brown-trout-found-on-shore-of-madison-river/
It is pretty wild to know that our Madison river is capable of producing such a giant brown trout. When you fish a river that flows between two lakes you never know what may have moved in from the depths.