112-20 BOSTWICK CREEK Kee 
N55°15.5 W131°45.8 Previous No. 116 
KETCHIKAN, NICHOLS PASSAGE, BOSTWICK INLET, Head 
MAJOR SPECIES Pink OTHER SPECIES Chum, coho, red, trout 
ESCAPEMENT TIMING Late. Sep. -Oct. ESCAPEMENT MAGNITUDE >10,000 
SPAWNING FACILITIES Rated as excellent, the stream contains extensive gravel riffle areas. A small lake 
has been reported which supports a red population. 
STREAM TEMPERATURES Warm range. Observed temperatures 47°F. , 10/6/49. 
VALLEY DESCRIPTION A long, low valley running N. -N. W. and continuing through Gravina Island down 
Vallenar Creek. Glacial origin. Timbered on slopes and along stream. Most of the valley has extensive muskeg. 
DRAINAGE 16 square miles (Polar Planimeter). Precipitation fed from E. and W. slopes of the valley. Tributary 
has small lake and pond on E. side of valley. 
STREAM MOUTH IDENTIFICATION Cabins on S. side of inlet near stream. 
ANCHORAGE Middle of inlet 1 mile from head. 
TRAILS AND SURVEY ROUTES Most easily approached at near high tide by skiff which may be taken above 
the head of the grassflat .3 mile. Stream bed easily walked. W. bank more easily traveled during higher water 
levels. 
AERIAL SURVEY NOTES Not surveyed by air. Dark bottom and amber-colored water reduce visibility for 
enumeration. 
INTERTIDAL ZONE 
LENGTH 1 mile AVERAGE WIDTH/DEPTH 35-45'/12-18" 
GRADIENT AND VELOCITIES .5° at 1-2' per second 
BOTTOM ‘Silt, sand, gravel 
HIGH TIDE LOCATION  .1 mile above large grass island. Small tributary enters stream from E. side. 
SCHOOLING AREAS No major schooling pools notes. 
SPAWNING AREAS _ Upper .5 mile of intertidal zone is utilized by spawning salmon where good gravel size 
has been observed. Most intertidal spawning occurs in the upper . 2 mile. 
GENERAL NOTES 
UPSTREAM 
LENGTH ACCESSIBLE >5 miles AVERAGE WIDTH/DEPTH 20-50!'/10-24" 
GRADIENT AND VELOCITIES .5-1° at 1-2' per second 
BOTTOM Some silt, sand, gravel, boulders. 
MARKER DISTANCE .5 mile. 
MARKER IDENTIFICATION Metal plate on 12" alder on W. bank above a narrow section in stream. 
BARRIERS None reported. 
TRIBUTARIES Lake tributary enters 1.5 miles upstream on E. side. Lake is 4 miles above confluence. 
SCHOOLING AREAS _ Some log covered holes and deep pools have been observed with schooling salmon in the 
first .5 mile of stream. 
SPAWNING AREAS Extensive riffles throughout the first .5 mile observed. 
GENERAL NOTES Bostwick Creek is well known for its sea run cutthroat trout population. 
ESCAPEMENT RECORD 
[Counts made by ground surveys are designated by G. Aerial surveys by A] 
SURVEYED PINK CHUM OTHER SPECIES REMARKS 
Date Miles By Live Dead Live Dead Live Adjective Rating 
1936 
Sep 25 FWS Light-fair seeding 
1938 
Sep 3 G2.0 FWS 100 Chum old. Stream very low 
1947 
Sep 28 G1.5 FRI 5,000 1,000 500 50 coho, 1 red Good 
1949 
Oct 6 G95) SERT 2,404 216 24 
1954 
Sep 28 A3.5 FRI 4,000 fish. Poor visibility 
1956 
Sep 26 G2.0 FWS- 11,500 500 500 coho Good. 9,000 pink at mouth 
