of our visit. Large stockpiles of clean gravel were also seen at both sites. 



Efforts to rehabilitate the floodpla 

 of the channel were not observed dur 

 were constructed in the downstream m 

 main channel in its pre-mining locat 

 shown in Figures 12, 38, 39, 43, 53a 



n or to maintain the natural character 

 ng the field study. Dikes, however, 

 ned area to maintain the course of the 

 on. Various aspects of this site are 

 53b, and 67. 



Oregon Creek . Oregon Creek is a small, straight river which originates 

 in the foothills of the Kigluaik Mountains at an elevation of 380 m and 

 flows approximately 7 km through a V-shaped valley to a confluence with 

 Cripple River. The valley walls are steeply sloped over the upper half of 

 its length; the lower half is flanked by moderately sloped hills. The Crip- 

 ple River headwaters lie at an elevation of about 300 m and the river flows 

 in a broad V-shaped val ley for 40 km before discharging into Norton Sound. 

 The Oregon Creek confluence occurs 15 km downstream from the headwaters of 

 Cripple River at an elevation of 80 m. 



The material site was developed by scraping gravel bars within and 

 adjoining the active channel near the Oregon Creek-Cripple River conflu- 

 ence. Scraping of angular gravel and cobbles was conducted west of the 

 Nome-Teller Highway in Oregon Creek from I960 to 1963 when 20,500 m of 

 material were removed from approximately 5.5 ha. Vegetation was removed from 

 4 ha at the downstream end of this site. Mounds of vegetated overburden 

 along the banks of the broadened channel and stockpiled gravel within the 

 active floodplain were observed during site inspection. Between June and 

 September 1965, 6,000 m of gravel were excavated from I ha in the Cripple 

 River immediately downstream from the highway bridge. Various aspects of 

 this site are shown in Figures 13, 40, 41, 53c, 64, and 74. 



Penny River . The Penny River is a small, sinuous river which originates 

 in the foothills of the Kigluaik Mountains at an elevation of 230 m and 

 flows approximately 23 km before discharging into Norton Sound. In its 

 upper reaches, the Penny River flows in a narrow V-shaped valley. The valley 

 broadens downstream and the valley floor typically reaches widths of 350 m 



40 



