. The Big Blackfoot River restoration progress report for 2002 and 2003 . Fish populations; Fishes; Fishery management; Trout fisheries; Stream ecology; Blackfoot River (Mont. ). recovery of dwindling stocks of fluvial bull trout and WSCT in the upper Blackfoot Watershed. Study Area The Blackfoot River watershed supports distinct regional difference between the upper and lower basin. The general features of the upper Blackfoot River include 1) a primarily alluvial valley, 2) large sections of river lacking natural tributaries, 3) areas of low instream productivity (Ingman et ), 4) exten
. The Big Blackfoot River restoration progress report for 2002 and 2003 . Fish populations; Fishes; Fishery management; Trout fisheries; Stream ecology; Blackfoot River (Mont. ). recovery of dwindling stocks of fluvial bull trout and WSCT in the upper Blackfoot Watershed. Study Area The Blackfoot River watershed supports distinct regional difference between the upper and lower basin. The general features of the upper Blackfoot River include 1) a primarily alluvial valley, 2) large sections of river lacking natural tributaries, 3) areas of low instream productivity (Ingman et ), 4) extensive intermittent channels in headwater areas, and 5) a reach of "impaired" river between the confluences of Nevada Creek and the North Fork. In contrast, the lower Blackfoot River (below the North Fork) receives a large influx of colder water from the North Fork, which reduces environmental stress and approximately doubles the base flow of the Blackfoot River. Beyond increased flows and improved water quality, the lower river supports higher secondar> productivity (Ingman et al. 1990), and higher native salmonid densities than the upper river (Results Part II). The upper Blackfoot Watershed (including the North Fork Watershed) covers -1,150 square miles of largely glaciated belt sedimentary rock. Bioclimatic zones range from alpine mountains to semi-arid bunch grass/fescue prairies at low elevations of the watershed. Landownership consists of 65% public land and 35% private ownership. Private lands consist primarily of agricultural bottomlands and private timberland in the foothills. We stratified of the upper Blackfoot River into three reaches (upper, middle cind lower) (Figure 46). The upper reach extends river miles (rm) from Lincoln (rm ) to Arrastra Creek (rm 88.). The upper boundary of this reach starts where an intermittent section begins to gain significant groundwater and spring creek inflows (Keep Cool Creek, Spring Creek and Grentie
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