"I'm seeing lots of fish right here, go ahead and drop that anchor and let's start in on 'em," Bill said. Rigged with the #2 set on the ALLSALT, the most sensitive of the lineup, I dropped a Zimmer's "Pickle" to the bottom of Flathead Lake. Jigging just off the bottom, I immediately felt a tug and set the hook. The muscle memory from the last jig fishing excursion for tuna took hold, and I cranked too hard on the reel, only to have the line go slack. Moments later, Bill hooked up and brought a chunky Lake Superior whitefish to the net. "Remember, these fish have soft mouths, you don't want to horse 'em". Heeding this advice, I allowed the rod to do most of the work on the next bite and added one of these shimmering delicacies to the cooler.
Lake Superior Whitefish in Flathead Lake
Tucked into the heart of northwest Montana, Flathead Lake is famous for its clear, cold waters and incredible diversity of native and introduced fish. Among the more surprising residents of this massive inland sea is the Lake Superior whitefish—a species more commonly associated with the Great Lakes. Their story in Flathead Lake is one of history, adaptation, and opportunity for anglers.
A Transplant from the Great Lakes
Lake Superior whitefish (Coregonus clupeaformis) were first introduced into Flathead Lake in the early 1900s as part of widespread fish-stocking efforts across the country. The goal was to diversify fishing opportunities and create a sustainable food source for growing communities. While the species never exploded in numbers like kokanee salmon once did, they carved out a niche in the ecosystem and remain an intriguing catch for those who know how—and where—to target them.
Habitat and Behavior
Whitefish thrive in the deep, cold, and clean waters that Flathead Lake provides. They are bottom-oriented feeders, often found cruising along gravel and sandy substrates in search of insect larvae, crustaceans, and small invertebrates. In the fall, they spawn in shallow rocky areas, but for most of the year, anglers will find them in deeper water.
Because they prefer cooler temperatures, whitefish are more active in the spring and fall. During summer, they often retreat to depths well over 100 feet, where they’re best targeted with specialized techniques.
Fishing for Whitefish on Flathead
Catching Lake Superior whitefish in Flathead Lake is both challenging and rewarding. Local anglers often jig vertically with small spoons, tungsten jigs, or dropper rigs tipped with soft plastic minnows. The key is to get down deep and stay in contact with the bottom, as whitefish tend to feed tight to the lakebed.
Culinary Value
Whitefish are highly prized for their delicate, mild-flavored meat. They can be grilled, smoked, or pan-fried, and many anglers consider them one of the best-tasting fish in Flathead Lake. Smoked whitefish, in particular, has a cult following in regions where the species is common.
The Bigger Picture
While not a native species, Lake Superior whitefish have become part of Flathead Lake’s identity. They offer anglers another dimension of opportunity in a lake already renowned for its size and productivity. They also remind us of the long and complex history of fish introductions in North America—decisions that still shape ecosystems today.
Whether you’re a seasoned local or visiting for the first time, targeting whitefish can add a rewarding chapter to your Flathead Lake fishing experience. With patience, the right gear, and a willingness to fish deep, you might bring home one of the lake’s best-kept secrets.