2-15 Distribution of Fish Species in the 

 Clark Fork Basin Excluding the 

 Flathead River System 2 -2 8a 



2-16 Location, Length, and River Mile 



Index Boundaries of Fish Population 



Study Sections on the Clark Fork 2-32 



2-17 Trout Population Estimates in Four 



Study Sections of the Clark Fork 2-32 



2-18 Trout Population Estimates in the 

 Johnsrud Section of the Blackfoot 

 River, Approximately 13 miles 

 Upstream from Bonner 2-33 



2-19 Average Size and Relative Abundance 

 of Young-of-the-Year Trout Sampled 

 by Electrof ishing 2-34 



2-20 Trout Fry Outmigration Rates 

 Monitored in Five Tributaries 

 of the Clark Fork during 1985 2-35a 



2-21 Estimated Fishing Pressure on the 

 Clark Fork and Selected Montana 

 Rivers (1985-86) 2-39 



2-22 Net Economic Value of the Clark 



Fork and Selected Montana Rivers 2-4 



3-1 Number of Pre-1973 Water Rights Claimed 

 for Major Water Uses in the Clark Fork 

 Subbasins (June 24, 1985) 3-2a 



3-2 The Quantity of Water Claimed for 

 Major Water Uses in the Clark 

 Fork Basin 3-2a 



3-3 Temporary Preliminary Decree 

 Issuance Dates, Clark Fork 

 Subbasins 3-7 



3-4 Provisional Water Use Permits 



Issued Since 1973 3-10 



3-5 History and Status of Superfund 

 Investigations in the Clark Fork 

 Basin 3-22b 



XI 



