I fall into the big fish lot. Guys like me spend numerous days each year stripping big, meaty Woolhead Sculpins and Leadhead Muddlers through the deepest pools, attempting to catch trout measuring more than 20 inches. It’s ugly chuck-and-duck fishing with little finesse, which makes me wonder, “Is this what fishing in the Rocky Mountains is all about?”

In the pursuit of large fish, I’m prone to forget the appeal of dry flies and eager trout. I rarely consider fishing such waters until friends show up in Montana and say, “It’s dry flies or nothing because we want to see the take.”

When that demand arrives, I pack the 4-weight, boxes of attractors, terrestrials, and standard drys, and head to southwest Montana’s Gallatin River, where the trout come easy and often, access is an afterthought, and hatches are diverse and prolific. By the end of a good day on the Gallatin, I ask myself, “Why don’t I do this more often?”

The Gallatin is a well-known and heavily fished stream that, regardless of those pitfalls, offers three species of trout that willingly smack dry flies and nymphs in one of the most beautiful and rugged portions of the Treasure State. The Gallatin has 120 miles of appealing trout water, including a delicate upper portion that flows through lush meadows, a roily middle section that cuts through a spectacular, heavily forested mountain canyon, and a lower stretch that twists across a broad valley before meeting the Jefferson and Madison rivers at Three Forks. Lewis and Clark named all three rivers in July 1805, when the Corps of Discovery reached the spot where the three forks combine to form the fabled Missouri River.

In some sections of the Gallatin the estimated number of mature fish is 4,000 per mile. To say that the Gallatin is fishing well is an understatement. Recent drought conditions have negatively impacted neighboring streams but according to biologists, the decline in precipitation raised the Gallatin’s water temperatures to perfect levels for trout growth. Today there are abundant trout in the Gallatin, with a good percentage of 12- to 14-inch fish.

In addition to the main river, the Gallatin’s productive tributary streams, such as Fan Creek, Taylor Fork, and the East Gallatin, are attractive options. Several productive spring creeks located in the Gallatin Valley also drain into the East Gallatin. For the pleasure of fishing Benhart, Thompson, Story, and Smith creeks, anglers pay a fee.