Entiat Falls, approximately 33 miles above the mouth, is 10 

 feet high and a harrier to fish. Several additional falls 8-10 

 in height are located farther upstream. 



The only important tributary to the Entiat is Mad River. 



13A.. Mad Rivero— (Surveyed at various times, 1935-1947 3 

 Shuman, Whiteleather, and members of the Grnnd Coulee fish main- 

 tenance project.) Enters the Entiat River 11 miles above the 

 mouth. The stream is 25 miles long, of which 23 miles v/ere 

 surveyedo The stream channel is 30-40 feet wide near the mouth, 

 and the discharge ranges from 15 c.f.s. to several hundred c.f.s. 

 With the exception of' the lower l/2 mile, the gradient is steep, 

 being 270-315 feet per mile in some sections. The stream bed 

 is composed mainly of large rubble, and spawning areas are small 

 and scattered. Despite the turbulent nature of Mad River, it 

 was considered by local sportsmen to have been the principal 

 steelhead trout producer in the Entiat River system. This 

 run has been greatly depleted for many years. There are no 

 reports of a run of salmon into Mad River. The stream still 

 supports a large population of small rainbov/ trout. 



Passage of migratory fish into Mad River was greatly 

 restricted for many years by the Harris mill dam on the main 

 Entiat just below the confluence of the two streams, as well 

 as by other obstructions on the lower main Entiat River. 

 However, steelhead are reported to have passed over the Harris 

 mill dam at high water stages when the flood gates were opened. 



A low log dam about 2/3 mile upstream supplies an unscreened 

 irrigation diversion ditch carrying 6 1/2 c.f.s. 



A plank dam 3 feet high located about 1 mile above the mouth 

 supplies a screened pipe line 12 inches in diameter leading to the 

 Harris lumber mill dam. Both of these dams are obstruction to fish 

 at low water stages. 



All of the tributaries to Mad River are too small and too 

 steep to be of possible value to salmon. 



13B, North Fork of Entiat River .— (Surveyed at various times, 

 1935-1947; Shuman, Whiteleather, and members of the Grand Coulee 

 fish maintenance project.) Enters the Entiat about 34 miles above 

 the mouth, above Entiat Falls, and extends through a deep narrow 

 canyon for a distance of about 10 miles. It is a typical steep, 

 turbulent mountain stream having a large amount of bedrock and 

 boulders and little possible spawning area in the stream bed. 

 It is 12-15 feet wide near the mouth and has an average discharge 

 of about 30 c.f.s. The stream is blocked 600 yards above the 

 mouth by three falls 10, 18, and 30 feet high. The North Fork 

 is of no value to salmon, and only of slight possible value to 

 steelhead. The stream section above the falls supports a good 

 resident trout population. 



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