101-13 NIGELIUS CREEK K 98 
N55°33.4 W131° 21.9 Previous No. 94 
KETCHIKAN, CARROLL INLET, In Shelter Cove just S. of Nigelius Point 
MAJOR SPECIES Pink OTHER SPECIES Chum, coho 
ESCAPEMENT TIMING Late. Sep. -Oct. ESCAPEMENT MAGNITUDE  5-10,000 
SPAWNING FACILITIES Good 
STREAM TEMPERATURES Warmrange. Observed temperatures: 50-55°F., 9/19/50, 45-52.5°F., 9/29/50; 
55-57 F., 1951; 52°F. 9/11/52. 
VALLEY DESCRIPTION Stream cut. Stream lies in a relatively deep cut in folded geologic structure running 
nearly paralled to Carroll Inlet. 
DRAINAGE 5 square miles (Polar Planimeter). Precipitation fed. Drains several lakes. 
STREAM MOUTH IDENTIFICATION Remnants of Indian stone fish trap on S. side of intertidal zone. 
ANCHORAGE Small bight just S. of stream mouth. 
TRAILS AND SURVEY ROUTES Easily walked during normal water, high ridge on E. bank offers high water 
route upstream. 
AERIAL SURVEY NOTES Limited aerial visibility due to steep banks of stream and timber. Good light required, 
usually about early afternoon. 
INTERTIDAL ZONE 
LENGTH .2mile AVERAGE WIDTH/DEPTH 40-50'/8-10" 
GRADIENT AND VELOCITIES 1° at 2' per second 
BOTTOM Coarse gravel, some shale. 
HIGH TIDE LOCATION | Just below rapids at head of grassflats. 
SCHOOLING AREAS Below rapids at head of grassflats. 
SPAWNING AREAS _ Good spawning facilities in the upper intertidal zone at the bend to the N. 
GENERAL NOTES 
UPSTREAM 
LENGTH ACCESSIBLE .8 mile AVERAGE WIDTH/DEPTH  10-20'/6-10" 
GRADIENT AND VELOCITIES  1-2° at 2-3' per second 
BOTTOM Bedrock, gravel, scattered boulders. 
MARKER DISTANCE .8 mile. 
MARKER IDENTIFICATION Blazed alder just below barrier falls on W. bank. Tributary enters from N. 
BARRIERS 30! falls impassable to salmon. 
TRIBUTARIES Tributary enters .05 mile above high tide from W. Barrier falls 30' high blocks salmon. Tri- 
butary enters .8 mile upstream from N. Accessible for short distance to salmon, though not used. 
SCHOOLING AREAS _ Small pools throughout upstream. 
SPAWNING AREAS _ Good spawning facilities above . 3 mile mark. 
GENERAL NOTES 
