19^ 

 C 0.0:6.0L TAZIMIM RIVER (Newhalen River) 



LOCATIOII: 59°57'2i|" n. 154°50'12" W. 



PREVIOUS I^MES OR NUMBERS: H2 



U.S.G.S. t'AP: Iliamna, lake Clark, 1:250,000 



PHYSICAL DESCRIPTION 



TOTAL LENGTH: 5i|.0 miles 



LENGTH ACCESSIBLE TO SAmON: 9.O miles 



AVERAGE WIDTH: I5O ' RANGE: 105'-l65' 



AVERAGE DEPTH: 2k" RANGE: l8"-U8" 



TOTAL ACCESSIBLE SPAWNING AREA: 792,308 square yards (I63.7 acres) 



POTENTIAL SPAWNING AREA: 22^, 17^,21^0 square yards (36. acres) 



BOTTOM QUALITY: 23^ <l/8", 23^ l/8"-3", 30^ 3"-12", 2k% >12". Fair gravel 

 in lower 5 miles, much rock above 5 miles. Water velocities exceeding 

 5 fps prohibit spawning in many places. 



WATERSHED: 350 square miles. Lower 10 miles a stream-cut valley, upper 

 part a glacial valley. Surrounding terrain forested with spruce. 

 Dense alder, willow, and cottonwood along stream. A 72' falls 9 miles 

 from mouth a total block to salmon. Source: lower and upper Tazimina 

 Lakes. 



GRADIENT: I8 '/mile below falls 



WATER VELOCITY: 6.0 fps 



FLOW: 1,U00 cfs (Sept. 10, I962) . RANGE: 



Normal summer flow. 



AIR TEMPERATURE: 18.0° C. (Sept. 10, I962) 



WATER TEI«IPERATURE: 12.5° C. (Sept. 10, I962) 



POOLS Aim RIFFLES: 



