Boulder River Fishing Report
The Boulder is ultra low and very clear right now. Fishing can be good on warmer days but requires a stealthier approach and a decent cast to get flies to the fish before they see you. Nymphing smaller patterns will likely be most productive. The Boulder is mostly a north facing drainage and the water is always very cold in the spring, so it takes longer to wake up than other fisheries.
The Month Ahead:
With longer days and an uptick in temps a lot the ice will start moving out. Spring fishing can be good on the Boulder. Nymphing will be your best option most of the time.
Long Term Fishing Forecast:
The Boulder will see some decent baetis hatches in April. The Boulder typically runs off a little bit later than the Yellowstone because of the high elevation snow pack and fishing should be good until then.