122-31 



56° 02. 8' N. 133° 28. 8' W. 



HOLBROOK CREEK 



WEST C O A S T , DAVIDSON INLET, HOLBROOK BAY, Head. 



ADF STAT. No. 



WC 70 



Previous No. 9 



ADF No. 1S4 



FWS No. 29 



MAJOR SPECIES Pink. OTHER SPECIES Chum. 



ESCAPEMENT TIMING Late. Sep. (estimated) ESCAPEMENT MAGNITUDE 



SPAWNING FACILITIES Fair. 



STREAM TEMPERATURES Warm range. No observed temperatures. 



VALLEY DESCRIPTION Stream-cut. A short valley connecting a lake with Davidson Inlet. 



DRAINAGE 3. 1 square miles ( polar planimeter) Drains a good sized lake. 



STREAM MOUTH IDENTIFICATION Runs past the N. W. end of a small island at the extreme end 



of the bay. 

 ANCHORAGE Wlien entering the bay steer a midcliannel course. Adequate anchorage may be found in 



the numerous bigiits in the Inlet. 

 TRAILS AND SURVEY ROUTES The stream is best surveyed by wading upstream. This can be 



done with some difficulty. 

 AERIAL SURVEY NOTES Not surveyed by air. 



INTERTIDAL ZONE 



LENGTH 300-400 yards. 



GRADIENT AND VELOCITIES 



BOTTOM Lorge boulders and gravel. 



LOW TIDE LOCATION 



HIGH TIDE LOCATION 



SCHOOLING AREAS Salmon school off the moutli. 



SPAWNING AREAS Most of the spawning in the stream takes place in this zone. 



the area between the low tide and high tide marks. 

 GENERAL NOTES 



AVERAGE WIDTH/DEPTH 20V8"-10" 



Fish spawn throughout 



UPSTREAM 



LENGTH ACCESSIBLE 0.7 mile. AVERAGE WIDTH/DEPTH lS'/6". 



GRADIENT AND VELOCITIES Steep. 



BOTTOM Large boulders with small gravel pockets. 



MARKER DISTANCE 



MARKER IDENTIFICATION 



BARRIERS Several steep, swift areas present a partial block at low water periods. 



TRIBUTARIES None reported. 



SCHOOLING AREAS A few small holes offer the only facilities for schooling. 



SPAWNING AREAS Only scattered gravel pockets are available for spawning in the upstream section. 



GENERAL NOTES 



ESCAPEMENT RECORD 



[Counts made by ground surveys are designated by G. Aerial surveys by A] 



