'^'^^^^Si 



Figure 7. Typical terrain of the Kokr i ne-Hodzana Higti- 

 I ands. 



ottier whitefish species. Anadromous species include ctium and Chinook salmon 

 and possibly anadromous whitefish species. 



Description of Study Rivers - Locations and Gravel Removal Area 

 Character i st i cs 



Dietrich River - Upstream and Downstream. The Dietrich River is a 

 medium, braided river which originates in the Endicott Mountains of the 

 Brooks Range at an elevation of approximately 1,500 m and flows southward 

 through mountainous terrain for 110 km, joining the Settles River to form 

 the Middle Fork Koyukuk River. 



The upstream study site is located approximately 4 km, 14 km, and 

 25 km upstream from the confluence with Big Jim Creek, Snowdon Creek, and 

 Bettles River, respectively. The downstream site is located 17 km and 6 km 



53 



