The Boulder near Big Timber is another not-so-secret-anymore secret. The Boulder flows north off the Beartooth Plateau and unlike it’s sister to the east, the Stillwater, it is aptly named. Steep and rocky it keeps both oarsmen and fishermen on their toes. This is definitely a river made for rafts.
With low summer flows he Boulder eventually gets too small to float but right after runoff starts to settle down the Boulder is the first place to offer good fishing….and I mean good. Stoneflies abound and the size of the fish in the “pockets” will surprise. The Boulder feels more like it belongs in the mountains of western Montana than “out east” and if it is floatable when you are here…it shouldn’t be missed.