58 



I 105.9 CANYON CREEK ( Iliarana lake) 



LOCATION: 59°48'06" N. 15i+°19'5^" W. 



PREVIOUS NAMES OR NUMBERS: F2 



U.S.G.S. MAP: Iliamna, 1:250,000 



PHYSICAL DESCRIPTION 



TOTAL LENGTH: I8.5 miles 



LENGTH ACCESSIBLE TO SALMON: I8.5 miles 



AVERAGE WIDTH: 35' RANGE: 20'-50' 



AVERAGE DEPTH: ik" RANGE: 10"-2ij-" 



TOTAL ACCESSIBLE SPAWNING AREA: 379,940 square yards (78,5 acres) 



POTENTIAL SPAWNING AREA: 51^, 193, 6OO square yards (ilO.O acres) 



BOTTOM QUALITY: 37^ <l/8", 29^ l/8"-3", 27^ 3"-12", 7^ >12". Lower 2 miles 

 good spawning gravel, above 2 miles bottom becomes coarse. Bottom 

 fairly stable. 



WATERSHED: kO square miles. Upper portion a stream-cut valley, lower 3 



miles a broad flat covered with spruce and cottonwood. Frequent channel 

 changes in lower 3 miles. Small falls and rapids common above ^l- miles. 

 Soxiroe: small lakes and surface runoff. 



GRADIENT: 137 '/mile 



WATER VELOCITY: 2.0 fps 



FLOW: 60 cfs (Sept. 7, I962). Measured RANGE: 

 near confluence with Torakok Creek, 

 normal summer flow. 



AIR TEMPERATURE: 



WATER TEMPERATURE: 



P00I5 AND RIFFLES: 



