Rainbow, outthroat, Dolly Vardens, and Rocky Mcantain Wliitefish 

 are taken in the lower and middle sections of the rivaro Orily ?ain'- 

 bow trout are taken above Chevrack Palls » 



"Hie Chewack Rj.-yer is extremely well suited for the proji-jictioa 

 of early running varieties of chinook salmon and stselhead trouto 



16C-(I)o Big Boulder Creek»~° (Ap;.»il 29, 1937, Jobes and 

 Baltsoo) Big Boulder Creek enters the Chewack River approximatsly 

 8 miles above the moutho The stream is about 13 miles long, of 

 which about 1 mile was sSsa-vayecl \:p to an impassabla falls 20 feet 

 in heighto The stream was 27 fee": wide at the mouth, and was 

 discharging about 14 cf.So on the date of observationo Tna water 

 temperature was 470Fo at the moutho The gradient is fairly steepj 

 estimated to be about 125 fset in the mile sarveysdo Tb.e possible 

 spawning area is confined to small scattered patches, fend the 

 stream does not appear attractive as a salmon spamTiing, araao More 

 than half of the streaai bad is composed of large rubbleo 



No salmon or steelheads were found or rsportsdo The stream 

 is of little possible value to migratory fisho 



16C~(2)o Ei gh ttp-i 1 a C reek » ■-» (April 29, 1937, Jobes and 

 BaltzOo) Eightmila Creek enters the Chewack River approximately 

 10 1/2 miles above the moutho The stream is about 17 miles longo 

 In the lower 1/2 mile it flc^ws through a relatively flat valley, 

 and the stream bed in this section contains some spawning t..reao 

 The stream was about 15 feet wide and discharging about 15 CofoSo 

 at the time of observationo This was probably a mintmura flow, 

 since the spring run=off had not started., TVo impassable beaver 

 dams were found within 500 yti'rds •aaf ihe moutho An extremely 

 steep canyon begins about 1/2 mile above the mouth and extends 

 for about 2 miles o A dam 3 feet in height is located at the 

 lower end of the canyono TWo diversions occur near this point, 

 one just above and one just below the damo Tiie lower ditch 

 provides water for a UoSo Forest Service Guard Station, and is 

 provided with a fish screen« Several impassable beaver dams 

 were also found in the osmyono There is practically no sii.itabla 

 spawning area in the canyon, as the stream flov/s in steep cascades 

 over bedrock and boulders » Above tias canyon the gradient decreasesp 

 but beaver dams are mjmerous in the flat, upper meadoj^So Wo migratory 

 fish were seen or reported, and the stream is of no significant im- 

 portance as a potential salmon producero 



16C-(3)o TWentymjLla Creeko-» (April 29, 1937, Jobes and 

 BaltsOo) Ttifentjnalle Creek enters a small side-channel of the 

 Chewack River approximately 19 miles above the moatiio Impassable 

 beaver dams on this sid©=efe&jmel both above and below the mouth of 

 Twentymrtls Creek render the latter stream entirely inaccessible to 

 migratory fisho The stream ia about 11 miles longo In the lorwer 

 mile through the Chewack Valley the grad'5t^»t is moderate to steep. 



88 



