113-13 LAGOON CREEK K 154 



55*14.6' N. 132°23.8' W. Previous No. 136 



KETCHIKAN, CLARENCE STRAIT, CHOLMONDELEY SOUND, WEST ARM, S. shore 3. 1 miles from head 



MAJOR SPECIES Pink, chum OTHER SPECIES Coho, red, trout 



ESCAPEMENT TIMING Late. Sept. -Oct ESCAPEMENT MAGNITUDE 



SPAWNING FACILITIES Excellent in the upstream area and the upper intertidal zone. 

 STREAM TEMPERATURES Warm range (Observed temperatures: 43' F. , 9/20/51, 45° F. , 9/28/51; 



47° F. , 9/21/52, 43°. F. , 10/5/52; 45° F. , 9/7/53, 45° F. , 9/20/53, 47* F. , 9/24/54). 

 VALLEY DESCRIPTION Glacial origin. Two miles upstream the valley splits, the shorter tributary going 



to the W. Both valleys narrow and terminate in high mountains. 

 DRAINAGE 14 square miles (polar planimeter). Precipitation fed. Large snow fields are found on both sides 



of the valley and on the ridge dissecting the two valleys. 

 STREAM MOUTH IDENTIFICATION The stream enters a lagoon which opens into the West Arm on 



tlie S. shore just W. of the most easterly group of small wooded islands. A tidal flat 1. 2 miles long 



runs along both banks. 

 ANCHORAGE Good anchorage with ample room for swinging is found just inside the wooded islands. Enter 



directly from the main channel. 

 TRAILS AND SURVEY ROUTES In the intertidal zone the left bank may be followed most easily. 



Above the intertidal zone the stream may be waded at times of normal water level. 

 AERIAL SURVEY NOTES The stream is open except for dense brush along the sides and aerial survey 



seems satisfactory. About I. 5 miles upstream the mountains converge rapidly and form a canyon which 



makes it necessary to turn around at this point . 



INTERTIDAL ZONE 



LENGTH 1.2 miles AVERAGE WIDTH/DEPTH 60'- 1 00' / 1 2"-24" 



GRADIENT AND VELOCITIES Gentle to moderate 



BOTTOM Small rock, gravel, and sand. 



LOW TIDE LOCATION 



HIGH TIDE LOCATION Just above the point where the stream meets the hill on the E. side of the valley 



at the upper end of the tide flat. 

 SCHOOLING AREAS The majority of the schooling takes place in the deeper water in the lower stream and 



off the mouth from the low tide mark to the small island. 

 SPAWNING AREAS Salmon spawn throughout this zone, but the area from mid tide to the high tide mark 



appears to be the best spawning area. 

 GENERAL NOTES 



UPSTREAM 



LENGTH ACCESSIBLE >2 miles AVERAGE WIDTH/DEPTH 50'- 1 25 ' / 6"-12" 



GRADIENT AND VELOCITIES Moderate 



BOTTOM Small rocks, gravel, and sand. 



MARKER DISTANCE 



MARKER IDENTIFICATION 



BARRIERS None. 



TRIBUTARIES None reported. 



SCHOOLING AB EAS Numerous pools throughout the streams length provide shelter for schooling salmon. 



SPAWNING AREAS Good spawning areas are interspersed throughout the entire distance surveyed. 



GENERAL NOTES 



