Great Falls, Montana Fishing Report 05.16.19

Runoff is Happening

The snowpack is coming down, but so has the Missouri River. How does that work?  Apparently, the water managers ran water out early and are now gradually filling up Canyon Ferry.  That means the Mo should remain an excellent option going forward.

After some warmth, rain and cooler temperatures are happening again.  The rain will likely continue melting snow and add to the stream flows.  The Sun, Smith, Belt, Highwood and other smaller streams are going to be pushed up for a while.

Ponds and Reservoirs

If runoff has you in a funk, get out on some flat water.  Fish are coming off the spawn and beginning to feed.  Chironomids (midges) have been effective and callibaetis (mayflies) should be popping off the latter half of May.  As always, balanced leeches and a variety of nymphs can be effective.  Try a purple boatman or purple prince as a general searching fly.

Creeks and Smaller Rivers

As mentioned, it’s runoff time.  You’ll need to come by and ask for the local’s report.  We’ll keep our eyes and ears on things.

Missouri River below Holter Dam

More good news! Flows have dropped to the 8K range.  Wading is more realistic at these flows, though less is still better.  The water has been in great shape.  Runoff flows may send some dirty water out Prickly Pear and the Dearborn, but hopefully, it will mix in and not adversely impact the Mo too much.

Some fish are looking up for bwos and March browns, so be ready in the afternoons. As is typical for the season, the upper river is best for nymphing with the lower stretches providing better streamer and dry fly action.  If you want to target browns, it's streamer time.  Go big and fish for big.  May is prime time.

Pike

There are toothy critters roaming the Missouri river and some of the larger reservoirs.  Now is a great time to get after them.  We’ve got pike leaders, bite tippet and plenty of pike flies to choose from.  We’ve also been catching some lately.

Smith River

If you have a permitted trip planned this spring, check out our Guide to floating the Smith River. Then stop in for your flies and supplies.  We’ve got you covered with camping gear, bear fence, and bear approved coolers.

Events

• Fly Fishing 101-Learn to Fly Fish-Free Introduction Classes Saturdays @ 10 a.m., April and May
• For More Information: Please contact Great Falls North 40 Fly Shop, (406) 761-7441

See past reports from the Great Falls region here, or click here to view all northwest regional reports.