30 



I 51.0 CAR CREEK ( Iliamna lake) 



LOCATION: 59°39'^8" N. 155°03'I^2" W. 



PREVIOUS NAMES OR NUMBERS: None 



U-S.G.S. MAP: Iliamrm, 1:250,000 



PHYSICAL DESCRIPTION 



TOTAL LENGTH: I3.O miles 



LENGTH ACCESSIBLE TO SAmON: I3.O miles 



AVERAGE WIDTH: 20' RANGE: 15 '-35' 



AVERAGE DEPTH: I8" RANGE: 12"-U8" 



TOTAL ACCESSIBLE SPAWNING AREA: 152,9^if square yards (31-6 acres) 



POTENTIAL SPAWNING AREA: 25^, 38,236 square yards (7-9 acres) 



BOTTOM QUALITY: 55^ <l/8", hZl" l/8"-3", 2^ 3"-12". Fair gravel from 2 to 

 k miles interspersed with rubble. Lover 2 miles mostly silt. Not well 

 known above h miles. Bottom apparently stable. 



WATERSHED: 21 square miles. A shallow stream-cut valley through open 

 tundra. Source: several small lakes and surface runoff. 



GRADIENT: l6'/niile 



WATER VELOCITY: 2.0 fps 



FLOW: 32 cfs (Avig. 15, I962). Measured RANGE: 

 1 mile from mouth, normal summer 

 flow. 



AIR TEMPERATURE: 18.0° C. (Aug. 15, I962) 



WATER TEMPERATURE: 12-5° C. (Aug. 15, I962) 



POOLS AND RIFFLES: 



