ADF STAT. No. 

 142-60 AARON CREEK WR 



56*22.9' N. 131*5.6.4' W. Previous No. 



WR ANGELL, BLAKE CHANNEL, enters large bay E. of Neptune I. 



MAJOR SPECIES Pink and chum. OTHER SPECIES Red, king. 



ESCAPEMENT TIMING Early. July-Aug. ESCAPEMENT MAGNITUDE 



SPAWNING FACILITIES Fair. 

 STREAM TEMPERATURES Normal range. Observed temperatures: 53.5*F., 8/8/51; 56. 5*F. , 



8/31/51; 56*F. , 9/2/51; S2*F. , 7/21/52; 55* F. , 7/29/52; 54. 5*F. , 8/6/52; 45* F. , 8/15/52; 



51. 5*F. , 7/24/52; 52*F. , 7/31/53; 52* F. , 8/10/53, 50* F. , 8/18/53. 

 VALLEY DESCRIPTION Glacial origin. Flows through a rugged valley; mountainous in its upper 



part. The valley is about a mile wide. A long tideflat is found at the lower end. 



DRAINAGE Precipitation-fed. Snowfields, both glacial and seasonal, surround the upper valley. 

 STREAM MOUTH IDENTIFICATION Enters through grass flat over 2 miles long. 



The mouth opens into the W. comer of the bay. 

 ANCHORAGE Bergs Bay offers best anchorage in passage. Enter on either side of the island 



in its mouth but give it a good berth. A reef extends 200 yaids northward of the inner end of the 



island. 

 TRAILS AND SURVEY ROUTES Go up the main stream in a skiff as far as the tributary. 



Survey the tributary on foot. Trail extends from Bergs Bay head through timber to stream mouth. 

 AERIAL SURVEY NOTES Only the tributary is clear enough for aerial surveying. 



INTERTIDAL ZONE 



LENGTH 1 mile. AVERAGE WIDTH/DEPTH 120'/30". 



GRADIENT AND VELOCITIES Moderate. 



BOTTOM Mud, sand, and very fine gravel. 



LOW TIDE LOCATION 



HIGH TIDE LOCATION 



SCHOOLING AREAS A deep area at the confluence of Aaron Creek and the tributary entering 



from the left at the head of the grass flats is the main schooling area. 

 SPAWNING AREAS None. 

 GENERAL NOTES The water is glacial colored and does not permit observation of the features 



in this area. Bottom very unstable in the entire intertidal area. 



UPSTREAM 



LENGTH ACCESSIBLE 7 miles. AVER AGE WIDTH/ DEPTH 80'/2'-3'. 



GRADIENT AND VELOCITIES Moderate. 



BOTTOM Fine sand and gravel. 



MARKER DISTANCE 1 mile. 



MARKER IDENTIFICATION 



BARRIERS None observed. Valley becomes steep. 



TRIBUTARIES A clear water stream enters at the head of the grass flat from the E. This 



stream is like a slough at mouth and offers poor spawning facilities. Above this the current increases 



and good spawning facilities are found. 

 SPAWNING AREAS 

 GENERAL NOTES The glacial colored water does not permit observation of physical features. 



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