101-11 K 101A 
N55°16.5 W131° 21.6 Previous No. 101A 
KETCHIKAN, REVILLAGIGEDO CHANNEL, COHO COVE, Right head of cove 
MAJOR SPECIES Pink OTHER SPECIES Chum 
ESCAPEMENT TIMING Late. Sep. -Oct. ESCAPEMENT MAGNITUDE <1,000 
SPAWNING FACILITIES Poor. Very limited gravel areas. 
STREAM TEMPERATURES Warm range. Observed temperature: 47°F., 10/3/50. 
VALLEY DESCRIPTION Stream cut valley common with K 101 in lower stream. Valley lies between two ridges. 
Two lake basins in upper valley. 
DRAINAGE _ 3.45 square miles (Polar Planimeter). Two lakes and numerous small ponds. Lower lake 2 miles upstream. 
Small pond . 8 mile upstream. Precipitation fed. 
STREAM MOUTH IDENTIFICATION Large rock lies off mouth. 
ANCHORAGE ‘See K 101. 
TRAILS AND SURVEY ROUTES 
AERIAL SURVEY NOTES Not surveyed by air. 
INTERTIDAL ZONE 
LENGTH <.1 mile AVERAGE WIDTH/DEPTH 8'/6" 
GRADIENT AND VELOCITIES 
BOTTOM Gravel. 
HIGH TIDE LOCATION Edge of woods. 
SCHOOLING AREAS _ Upper intertidal zone. 
GENERAL NOTES 
UPSTREAM 
LENGTH ACCESSIBLE AVERAGE WIDTH/DEPTH 8!/6" 
GRADIENT AND VELOCITIES Greater than 3° at 3' per second 
BOTTOM Bedrock and boulder. 
MARKER DISTANCE 
MARKER IDENTIFICATION 
BARRIERS 
TRIBUTARIES No important tributaries. 
SCHOOLING AREAS Pools in lower section. 
SPAWNING AREAS _ None reported. 
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 
1947 
Sep 27 G .2 FRI 200 24 Good 
1950 
