101=41 BLACK CREEK Ke 217, 
N55°08.1 W131° 04 Previous No. 22 
KETCHIKAN, REVILLAGIGEDO CHANNEL, BLACK ISLAND COVE 
MAJOR SPECIES Pink OTHER SPECIES Chun, trout 
ESCAPEMENT TIMING Late. Sep. -Oct. ESCAPEMENT MAGNITUDE 
SPAWNING FACILITIES Limited. The stream has extensive areas of bedrock and boulders. The gravels are 
suitable for spawning, but found only at points between slow water and bedrock and boulder areas. Gravel areas 
ete more abundant upstream 
STREAM TEMPERATURES Warm range (estimated). 52° F., 9/10/50. 
VALLEY DESCRIPTION The stream flows through lowland flats. The headwaters are on the N. slope of North 
Quadra Mountain and flow W. to a lake 3 air miles from the mouth of Black Creek. The lake is about 1.5 miles 
long. The stream below the lake is precipitous and falls visible from the air may block passage. 
DRAINAGE The drainage area is estimated at less than 15 square miles. The mountains above the headwaters are 
usually bare of snow by July and the major source of discharge during late summer and fall is through precipitation. 
The dark color of the water indicates that muskeg is extensive in the drainage system. 
STREAM MOUTH IDENTIFICATION The stream mouth has a small intertidal falls. The mouth lies in the 
S.E. comer of small bight formed by a small peninsula E. of Black Island. There is a long sand beach N. of the 
stream mouth. Garnets are found on this beach. 
ANCHORAGE The bight is shallow and contains rocks. Small boat anchorage may be found inside of the island. 
Approach to the drop-off can be along the N. side of the peninsula. Anchorage is in sand bottom . 
TRAILS AND SURVEY ROUTES No trails other than game trails. Walking during normal water levels is not 
difficult. The bottom is slippery in places and pools can be passed easily. 
AERIAL SURVEY NOTES The dark stream bottom and colored water limit the visibility for counting salmon. 
This stream is not usually surveyed from the air. 
INTERTIDAL ZONE 
LENGTH .1mile AVERAGE WIDTH/DEPTH  30!/24" 
GRADIENT AND VELOCITIES 1° at 1! per second 
BOTTOM Bedrock and boulders. 
LOW TIDE LOCATION Midway between the stream mouth and the end of the peninsula. 
HIGH TIDE LOCATION At the top of the intertidal falls. 
SCHOOLING AREAS The intertidal pool below the falls. 
SPAWNING AREAS None noted. 
GENERAL NOTES Intertidal zone spawning is negligible. 
UPSTREAM 
LENGTH ACCESSIBLE 4 miles (estimated) AVERAGE WIDTH/DEPTH 40'/24" 
GRADIENT AND VELOCITIES Less than 1° at 1' per second 
BOTTOM Bedrock, boulders, limited gravel. 
MARKER DISTANCE 
MARKER IDENTIFICATION 
BARRIERS Falls and rapids reported below lake may prevent passage of salmon. 
TRIBUTARIES One small tributary is about 3.5 miles upstream. It is not considered to be important as a spawning 
area. 
SCHOOLING AREAS Pools scattered throughout the lower 1.5 miles of stream offer shelter for schooling salmon. 
SPAWNING AREAS Scattered at intervals between the pools and bedrock areas throughout first 1 1/2 miles of stream. 
GENERAL NOTES Earlier reports of the large capacity of this stream for salmon are in error. The spawning areas 
are good, but are limited to only a small part of the stream accessible to salmon. 
ESCAPEMENT RECORD 
[Counts made by greund 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 
1940 
Sep 11 G .5  FWS 1, 000 Poor. 2,000 off mouth 
1947 
Oct 5 G .8 FRI 1, 000 50 Fair. Run was largely over 
1950 
Sep 10 i205) OER 
Sep 30 AS5.0O FR 
1, 000 100 coho No chum observed 
A few fish observed 
a 
