113-12 ROCK CREEK K 166 



:55*18.8' N. 132*26.7' W. Previous No. 142H 



KETCHIKAN , CLARENCE STRAIT, SKOWL ARM, POLK INLET, 0. 3 mile N. W. of head 



MAJOR SPECIES Pink, chum OTHER SPECIES Coho 



ESCAPEMENT TIMING Late (estimated) ESC APEMEN T M AGNI TUDE 



SPAWNING FACILITIES Good 



STREAM TEMPERATURES Warm range (estimated). 

 VALLEY DESCRIPTION 



DRAINAGE 7 square miles (polar planimeter). 



STREAM MOUTH IDENTIFICATION The stream enters the head of Polk Inlet. 

 ANCHORAGE Same as for K 165. 

 TRAILS AND SURVEY ROUTES 



AERIAL SURVEY NOTES Stream banks have been logged; visibility excellent. 



GENERAL NOTES One escapement record. No record of physical features or indication of importance 

 as a salmon stream. 



INTERTIDAL ZONE 



LENGTH AVERAGE WIDTH/DEPTH 



GRADIENT AND VELOCITIES Moderate 



BOTTOM Rubble. 



LOW TIDE LOCATION 



HIGH TIDE LOCATION 



SCHOOLING AREAS 



SPAWNING AREAS Most spawning occurs in this area. 



GENERAL NOTES 



UPSTREAM 



LENGTH ACCESSIBLE AVERAGE WIDTH/DEPTH 



GRADIENT AND VELOCITIES 



BOTTOM 



MARKER DISTANCE 



MARKER IDENTIFICATION 



BARRIERS 



TRIBUTARIES Forks <1 mile upstream. The W. fork is about 1.5 miles long and drains a small lake. 



SCHOOLING AREAS 



SPAWNING AREAS Limited spawning. 



GENERAL NOTES 



