Bighorn River Fishing Conditions Wyoming: Good news! The warm weather this week helped to defrost the river. The ice dam between Wedding of the Waters and Hot Springs State Park is now gone! There is little to no ice floating down the river and conditions are in good shape for winter fly fishing. This weekend is the last to hunt waterfowl. We had a great weekend this last week with good luck with both the cast and the blast. There was never a dull moment in the boat. Hot flies right now are worms, midges, sowbugs, and streamers. Our guides love fishing in all conditions and seasons, but winter is a whole different special. Not much traffic on the river, nice backdrop, and stellar fly fishing. We are still offering our winter special for $350 (one angler or two).