North 40 Fly Shop eMagazine April 2015 | Page 17

A pril is month where we truly shift into the spring open water fishing season. While some of us refuse to ever give the fish a rest, most anglers lay up a bit until fair weather and fishy conditions become the norm. While waters are still chilly, they are warming and life is beginning to move at a faster pace. Bugs are crawling and hatching. The smaller streams warm more quickly, meaning Belt Creek and the Sun River will initially see more bug activity than the larger more tempered Missouri. Once waters push into the 40s, you can expect to see BWO’s, Skwalla stones and March Browns. April is a primary spawning month for many rainbows and a great time to focus attention on Brown Trout. The browns are hungry. They get done spawning as winter approaches and they are ready to pack on some calories as spring warmth activates their metabolism. This is a great time to throw those big nasty streamers for crushing strikes. Runoff is always the wild card in the spring fishing season. Some days, the tributaries will get a push of melt water and they may become unfishable for a time. Don’t fret. This is a vital process and critical to their health and ultimate productivity. The Mo always fishes well regardless of tributary actions. The lakes and reservoirs are also open and large trout are cruising in shallow water. Ice is just coming off some of the higher elevation lakes and ice out action can be intense. Flexible anglers always find plenty of options. GREAT FALLS As May rolls forward, the Missouri River begins to crank up. Hungry rainbows return from the spawning tributaries and get stronger and more aggressive by the day. BWO’s start to overshadow the midges. Larger mayflies produce vigorous rises. Caddis appear as the water warms to the 50s. It’s go time on the Mo. Nymphing with the standard fare of scuds and worms can provide steady morning action. Tiny Mayfly nymphs are always in fashion. Caddis pupa can get hot later in the morning. Soft hackles and emergers produce solid takes. Dry fly activity becomes more and more common. Streamers still move some very nice fish. Diversity  reigns. While lakes, reservoirs and many of the larger streams and rivers are open all year, the general fishing season begins the third Saturday in May. Now you can venture to the smaller mountain streams and fish up in the headwaters of some of your favorite rivers. Fishing options are wide open. – ­ FRED Great Falls Fly Shop Manager