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West Twin Creek

Location map for West Twin Creek in the Blackfoot Watershed

West Twin Creek is a basin-fed, third-order stream originating from the slopes of Wisherd Ridge and Sheep Mountain in the Lolo National Forest.  It flows southerly through foothills and a mixture of Plum Creek Timber Company land and private land to its confluence with the Blackfoot River at river mile 10.6.

Photo of the culvert on West Twin CreekA grade control structure installed above the Highway 200 culvert crossing failed to include fish passage design features and is a fish barrier.

Restoration activities included modifying the stream grade control with plunge pools and migration routes to allow for upstream migrations at all stream flow stages.  Fish population samples were collected in August 1996 at river mile 0.1.  A mixed fish population was comprised of rainbow, brook, brown and westslope cutthroat trout.  This mixed species assemblage may indicate successful migration though the grade control structure.

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Blackfoot Valley Watershed
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Mountain-Prairie Region
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