South Fork to form the niain Yaml'iill River 10-| milss above the mouth of 

 the latter. Tl:ie stream is 26 miles long. The discliarge v;as approxi- 

 mately 12 c.f .3. Floods of over 4,000 c.f .s., have been recorded. The 

 water temperature ranged from 50*^to 61° F. 



The lovrer 13 miles is all slough area, vrith the stream bed covered 

 with mud and silt at all ix)ints inspected. A gravel crusher at this 

 point washes silt into the stream. 



The Carlton lumber mill dam, located 7 miles above the mr>uth, is 

 30 feet high and is a total barrier to fish. A former fishv/ay has been 

 abandoned and is beyond repair. Except for considerable leakage 

 through the dam, the entire flow is diverted during Iot/ water periods. 



An old abandoned lumber dam located about 21t7 miles above the 

 mouth is at least a partial barrier to fish. 



There are two log jams 22-23 miles upstream, the upper one being 

 impassable to fish. 



There is very little spavming area in the lower 15 miles . There 

 is spavming area for more than 3,000 salmon in the next 9 miles , all 

 cf v/'hich is unavailable because of the Carlton Dam. 



With stream improvements and stocking the stream should be able 

 to support runs of chinook and silver salmon and steelliead. 



25N-(2)a. Panther Creek . --(inspected September 28, 1940; Frey 

 and Zimmer.) Enters the Nortii Yamhill 3 miles above the mouth. The 

 stream is about 11 miles long. The discliarge was 15 c.f.s., and the 

 water temperature was 56° - 66° F. 



A sa-kvnill diversion dam and waterv;heel located about 3 miles up- 

 stream is a barrier to fish at low water. 



The lower 5 miles of the stream contains a large amount of mud 

 and silt. The upper section contains some good spavming areas. 



There were no reports of salmon in the stream. 



25N-(2)a-io Baker Creek . — (inspected September 28^ 1940; Frey and 

 Ziramer.) Enters Panther Creek 1/2 mile above the mouth. The stream is 

 about 18 miles long. It was 15 feet wide near the mouth, and the vrater 

 temperature v;as 56° F, This stream is similar to Panther Creek, except 

 that it is smaller and lias less spavming area. 



25N-(3). South Yamhill River . — (Inspected September 28-30, 1940; 

 Frey and ZimmerT) Joins the North Fork to form the main Yamhill River 

 lOv miles above the moutti of the latter. 



44 



