88 

 I 1I19.O SWAMP CREEK ( Iliamna Lake) 



LOCATION: 59%8'00" N. 153°52'2l+" W. 



PREVIOUS NAMES OR NUMBERS: D9 



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



PHYSICAL DESCRIPTION 



TOTAL LENGTH: 1.6 miles 



LENGTH ACCESSIBLE TO SAmON: 1.6 miles 



AVERAGE WIDTH: 10' RANGE: 6'-15' 



AVERAGE DEPTH: 8" RANGE: 6"-12" 



TOTAL ACCESSIBLE SPAWNING AREA: 9,196 square yards (I.9 acres) 



POTENTIAL SPAWNING AREA: I9/0, 1,936 square yards (O.I+ acre) 



BOTTOM QUALITY: 29fo <l/8", 2l/o l/8"-3", 19lo 3"-12", 31^ >12" . Poor spawn- 

 ing facilities. Bottom stable. 



WATERSHED: 7 square miles. A stream-cut canyon within a glacial valley. A 

 large marshy lake at mouth. Spruce, cottonwood, and dense willow brush 

 cover most of valley and surroimding hillsides. Source: a J^ke. 



GRADIENT: 21 '/mile 



WATER VELOCITY: 2.0 fps 



FLOW: 10 cfs (July 25, I962). Measured RANGE: 

 200' from mouth, normal summer flow. 



AIR TEMPERATURE: 22.0° C. (July 25, I962) 



WATER TEMPERATURE: 17.0° C. (July 25, I962) 



POOLS AND RIFFLES: 



