Montana Fly Fishing
Fly Fishing the Clark Fork

Clark Fork

The Clark Fork

Clark Fork at Kohrs Bend FAS
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The Clark Fork begins at the confluence of Silver Bow Creek and Warm Springs Creek in the Warm Springs Wildlife Management Area, which is located west of Butte and east of Deer Lodge. The fact that this river has any fish at all is a surprise to many anglers. The fact that the river actually has decent fishing for very large trout in some sections of the river is a testament to the ability of a nature to heal itself from near catastrophic damage.

The Clark Fork has the dubious honor of originating near the largest Superfund site in the US. Silver Bow Creek near its headwaters is essentially fishless, as various toxic metals are found in and all along the creek just upstream from its confluence with Warm Springs Creek. These toxins, of course, drain into the Clark Fork and have, both today and especially in the past, caused the Clark Fork tremendous environmental damage.

The Clark Fork : General Overview

The Clark Fork is one of the longest rivers in Montana, stretching more than 280 miles from its origin to the Idaho border. The last sixty miles of the river is essentially a series of lakes created by three dams. The best fishing on the Clark Fork is found between its origin and the confluence with the Flathead River near Paradise.

For its entire length in Montana, Interstate 90 roughly parallels the river, providing frequent if sometimes noisy access sites. The terrain the Clark Fork flows through is quite diverse. At its origin, the area is marked by large, arid plains with towering mountains located to the south. The many scars on the landscape, especially near its headwaters, serve as a reminder to what the regions heavy mining activity. The Clark Fork picks up flows from many smaller streams as well as the Little Blackfoot River in this section.

Clark Fork in the Bearmouth Area
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Further downstream, beginning around Drummond and lasting till Missoula, the Clark Fork picks up volume and begins to thread its way through the Garnet Range on the north and the John Long Mountains and Sapphire Mountains to the south. In this section, the riverbanks are frequently forested and it is quite scenic.

The valley the Clark Fork flows through in this section is quite narrow, and mountains frequently abut right up against the river. Despite this narrow valley, access to the Clark Fork in this stretch is excellent. A road closely follows the river on the north side for much of the distance in the canyon, allowing for easy off the road access. Several bridge crossings and designated fishing access sites provide further access. The Clark Fork picks up the flows from Rock Creek, Flint Creek and the Blackfoot River in this canyon section as well.

The river leaves the mountains temporarily and enters Missoula, MT. Following Missoula, the river picks up the flows from the Bitterroot River and makes its way through a fairly large plain before entering heavily forested mountains another twenty miles downstream. This is a very scenic area, with moderately tall forested mountains rising straight up from the river. While the Interstate roughly parallels the river, the Clark Fork is generally located deep down in a canyon, usually a hundred feet or more below the level of the road. The only real whitewater on the Clark Fork is also encountered in this section. A number of designated fishing sites, along with many road access spots, provide decent access to the Clark Fork in this section.

After flowing through this scenic countryside for another sixty miles, the Clark Fork joins up with the Flathead River, and becomes a very considerable river. While the countryside is still mountainous, the area is noticeably drier and not nearly as forested as found just a bit upstream. Following its confluence with the Flathead River, access to the Clark Fork becomes more difficult, with only a handful of fishing access sites providing access to the river. The Clark Fork continues on to a series of dams downstream from Thompson Falls, Montana.

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