101-2 BOULDER CREEK K 40 
NS55° 36.5 W130°41.2 Previous No. 38A 
KETCHIKAN, BEHM CANAL, RUDYERD BAY, E. shore midway between N. and S. Arms 
MAJOR SPECIES Pink OTHER SPECIES 
ESCAPEMENT TIMING Middle. Aug, -Sep. ESCAPEMENT MAGNITUDE 
SPAWNING FACILITIES Good, though limited in stream beyond .3 miles. The lower stream is steep and 
difficult to ascend. The upper section extends over .5 miles, though no information is available on the extent 
of the facilities. 
STREAM TEMPERATURES Lower normal range (estimated). 
VALLEY DESCRIPTION Glacial. 5 miles to cirque head in mountain ridge over 3,000' elevation. Steep valley 
walls and cliffs. 
DRAINAGE 5 square miles (estimated). Early snow patches, ground water, no lakes or ponds. 
STREAM MOUTH IDENTIFICATION At head of smali cove, grass flats around high tide area, Fish and 
Wildlife Service streamguard cabin on N. shore . 1 miles from head of cove, stream appears steep and brushy 
with timber throughout first .3 miles. Lower gradient upper valley not visible from bay. 
ANCHORAGE Incove. 
TRAILS AND SURVEY ROUTES No teails. Difficult walking in first .3 miles. Creek more easily walked upstream. 
AERIAL SURVEY NOTES Not surveyed by air. However, short upper valley may be surveyed by air in light 
plane. Restricted valley for flight maneuvers. 
INTERTIDAL ZONE 
LENGTH .1 miles AVERAGE WIDTH/DEPTH 15-25'/6-12" 
GRADIENT AND VELOCITIES 2° at 2-3' per second 
BOTTOM Sand, gravel, rocks. 
HIGH TIDE LOCATION Head of grass flats at tree line. 
SCHOOLING AREAS The intertidal and cove of this stream are frequently observed with large schools of pink 
salmon. However, these observed salmon are migrating to other streams in Rudyerd Bay and only a small 
proportion enter Boulder Creek. 
SPAWNING AREAS Upper intertidal zone. 
GENERAL NOTES Boulder Creek cove is the heaviest saltwater schooling area in Rudyerd Bay. 
UPSTREAM 
LENGTH ACCESSIBLE >1 mile AVERAGE WIDTH/DEPTH  15-20'/12" 
GRADIENT AND VELOCITIES Greater than 3° at 3-4' per second in first . 3 miles. Less above. 
BOTTOM _ Gravel, rocks and boulders. 
MARKER DISTANCE 
MARKER IDENTIFICATION 
BARRIERS None in 1 mile. 
TRIBUTARIES 
SCHOOLING AREAS 
SPAWNING AREAS Above .3 mile mark. 
GENERAL NOTES 
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 
1939 
Sep 14 G .1ASI,FWS Few pink. Few fish off mouth 
1941 
Sep 26 G .3 FWS 1, 000 Poor 
1943 
Sep 17 G .5 FWS 5, 000 Poor 
1953 
July 22 G .0 FWS 0) (e) te) 0 No fish present 
Aug 7 Geo EWS 17 Poor 
Aug 12 G .0 FWS Few at mouth 
1956 
July 24 FWS 6, 000 
July 29 FWS 8,000 
Sep 14 G .1 FWS 3 
