112-10 VALLENAR CREEK K 116 
N55° 22.7 W131°49.6 Previous No. 117 
KETCHIKAN, CLARENCE STRAIT, VALLENAR BAY, Head 
MAJOR SPECIES Pink OTHER SPECIES Chum, coho 
ESCAPEMENT TIMING Late. Sep. -Oct. ESCAPEMENT MAGNITUDE 10-20,000 
SPAWNING FACILITIES. Good. Gravel areas in lower stream are restricted in places by thinness of the gravel 
layer over blue clay. Upstream facilities are very good. 
STREAM TEMPERATURES Warm range. Observed temperature: 51°F. , 9/24/50. 
VALLEY DESCRIPTION Long broad valley continues over very low divide on into Bostwick Creek and inlet. 
Probably glacial origin in folded sedimentary structure. 
DRAINAGE 8 square miles (Polar Planimeter). Precipitation fed. Some very small muskeg ponds about 4 miles 
upstream, no lakes. Wooded slopes and muskeg areas on valley floor. 
STREAM MOUTH IDENTIFICATION Broad delta across head of bay. Logging operations have been con- 
ducted on the E. side at head of bay. 
ANCHORAGE E. side of bay about 1 mile from head in 6 fathoms. 
TRAILS AND SURVEY ROUTES Game trails along the creek. Brush is less dense close to banks. 
AERIAL SURVEY NOTES Aerial observation of salmon is confined to the lower stream by the restrictions of 
brush and timber along the banks. Amber colored water further reduces salmon visibility. Valley is broad and 
open, making the stream course easy to follow. 
INTERTIDAL ZONE 
LENGTH .8 mile AVERAGE WIDTH/DEPTH  30-45'/12-18" 
GRADIENT AND VELOCITIES .5° at 1-2' per second 
BOTTOM Gravel. 
HIGH TIDE LOCATION Base of a broken falls (passable) 3-4' high, 'l mile above head of grassflats. Stream 
makes 90° bend toward the S. W. bank is steep. 
SCHOOLING AREAS A series of shallow pools in upper intertidal zone have been observed with schooling salmon. 
SPAWNING AREAS Upper 300 yards of the intertidal zone has spawning riffles over small broken rock over blue 
clay- 
GENERAL NOTES 
UPSTREAM 
LENGTH ACCESSIBLE >2 miles AVERAGE WIDTH/DEPTH  30-35'/8-12" 
GRADIENT AND VELOCITIES 1? at 1-2' per second 
BOTTOM _ Gravel, smal rock, bedrock. 
MARKER DISTANCE 1 nmile. 
MARKER IDENTIFICATION Metal plate on hemlock at base of second split. 
BARRIERS None reported. 
TRIBUTARIES Small tributaries enter stream at intervals from mountain slope to the E. at intervals beginning 
1. 2 miles upstream. No important as spawning areas. 
SCHOOLING AREAS Scatterd logs in stream furnish cover for schooling salmon. No major schooling area. 
SPAWNING AREAS Gravel riffles held by buried logs scatterd upstream are used by salmon. Lower stream has 
been observed with most spawning salmon. 
GENERAL NOTES 
