The Ruby River near Virginia City and Twin Bridges, Montana is a good option for mid-summer fly fishing. The Ruby Dam helps to regulate flows which helps to regulate water temperature. The Ruby River also provides a lot of water for irrigation in late July, flows tend to run average when many other rivers are running low. But, the Ruby River is surrounded almost entirely by private land and tends to run bank-full so walk-and-wade fishing is often more difficult than on other rivers.
Current Conditions:
The water is flowing about average right now so the fish are going to be in their usual hangouts. Below the dam the nymph fishing is best with smaller technical spring creek style patterns on lighter flouro carbon tippet.
The Month Ahead:
The Ruby will be in a mid summer mode all the way into September. In the fall the fishing is often consistently good with smaller technical nymphs and the occasional hopper action.
Long Term Fishing Forecast:
The Ruby is a nice smaller wade option in October. The browns get aggressive and the streamer fishing can be solid for medium sized trout up to 20".