On the rivers around Missoula, Montana, the dry-fly fishing starts early, when the Skwala stoneflies start hatching in March. As fly tier Denny Waln explains in this great video from PMD Productions, “We tried to be tight-lipped about it, but word got out.” After you watch the video, you’ll understand why folks get so excited about these big bugs.

One day I’ll make it up there in March. I usually go in July/August, when the stone flies are in full swing.