ADF STAT. No. 

 144-61 WR 94 



56-15.7' N. 133°38.5'W. Previous No. 128 



WRANGELL, SUMNER STRAIT, HOLE IN THE WALL. 



MAJOR SPECIES Pink. OTHER SPECIES Chum, echo. 



ESCAPEMENT TIMING Middle. Aug. -Sept. ESCAPEMENT MAGNITUDE 



SPAWNING FACILITIES 

 STREAM TEMPERATURES Cold range. Observed temperatures: 50.5°F., 8/16/52; 48°F., 8/25/52; 



46.5°F., 9/6/52; 45*F., 9/ 17/52; 48° F. , 8/15/53i 48.5''F., 8/24/53; 47.5'>F., 9/10/53; 46^., 



9/19/53. 

 VALLEY DESCRIPTION Stream-cut. A high bluff outlines the W. side of the valley. The valley haJ 



a moderate gradient. 

 DRAINAGE 10 square miles (polar planimeter). 

 STREAM MOUTH IDENTIFICATION The stream enters the &F.. corner of the tideflat and breaks 



into numerous channels. 

 ANCHORAGE This basin offers good anchorage for small craft in all weather. The bay dries to 0.5 mile 



from its head. 

 TRAILS AND SURVEY ROUTES Bordered by dense woods and underbrush. 

 AERIAL SURVEY NOTES 



INTERTIDAL ZONE 



LENGTH 0.6mile. A VE R A GF WI D TH / D EP TH 20'-4O'/12". 



GRADIENT AND VELOCITIES Gentle to moderate . 



BOTTOM Gravel. 



LOW TIDE LOCATION 



HIGH TIDE LOCATION 



SCHOOLING AREAS 



SPAWNING AREAS 



GENERAL NOTES 



UPSTREAM 



LENGTH ACCESSIBLE AVERAGE WIDTH/DEPTH 20'-40'/12'! 



GRADIENT AND VELOCITIES Moderate. 



BOTTOM Sand and gravel. 



MARKER DISTANCE 



MARKER IDENTIFICATION 



BARRIERS 



TRIBUTARIES 



SCHOOLING AREAS "* 



SPAWNING AREAS 



GENERAL NOTES 



136 



