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2k 



I ij-6.2 UPPER TALARIK CREEK ( liiamna Lake) 



LOCATION: 59°38'l+8" N. 155°09'5^" W. 



PREVIOUS MMES OR NUMBERS: G2 



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



PHYSICAL DESCRIPTION 



TOTAL I£NGTH: 30.0 miles 



LENGTH ACCESSIBLE TO SAIJ«10N: 30.0 miles 



AVERAGE WIDTH: 38' RANGE: 35 '-^2' 



AVERAGE DEPTH: I8" RANGE: 12"-30" 



TOTAL ACCESSIBLE SPAWNING AREA: 669,856 square yards (138.4 acres) 



POTENTIAL SPAWNING AREA: k%, 301,532 square yards (62.3 acres) 



BOTTOM QUALITY: 12^ <l/8", 7?^ l/8"-3'i H/^ 3"-12". Good gravel in lower 8 

 miles interspersed with some rubble. Not well known above 8 miles, 

 reported to have good gravel to headwaters. Bottom stable. 



WATERSHED: 132 sqimre miles. Lower 5 miles a shallow stream-cvtt- valley, 



upper 25 miles a glacial valley. Surrounding hills forested with spruce, 

 dense willow brush along stream. Source : surface runoff and several small 

 lakes at headwaters. 



GRADIENT: 33 '/mile 



WATER VELOCITY: 2.0 fps 



FLOW: 60 cfs (July 29, I962). Measured RANGE: 

 8 miles from mouth, normal summer 

 flow. 



AIR TEMPERATURE: 20.0° C. (July 29, I962) 



WATER TEMPERATURE: 17.0° C. (July 29, I962) 



POOLS AND RIFFLES: 



