142 Kansas Academy of Science. 



mile further up-stream. It now meets the incoming tide and is 

 forming no delta, but a bar out at sea is seen to be forming. The 

 muddied waters of the river color the ocean a mile from shore at 

 flood time. The abandoned channel of the river at La Push is 

 known as the "lagoon," and is the playground and highway of the 

 village. Its connection with the ocean is closed, but it is still an 

 arm of the river and its waters rise and fall with the tide. The 

 Quillayute and its tributaries drain the greater part of the syncline 

 that extends from the coast to the top of the divide between the 

 Strait of Fuca and the Pacific and from the Happy lake country in 

 the Olympics to Waatch strait, the Ozette lake and river occupy- 

 ing the western part of this same trough. It is a young stream. 

 It is likely not older thaa the late Pleistocene, though its tribu- 

 taries are much older, a bay having occupied its site till then. The 

 tide extends up this stream between four and five miles. A rapids 

 at its mouth prevents it from being navigable. 



Dickey river, the western branch of the Quillayute, drains Dickey 

 lake, and was likely once the outlet of Ozette lake, if the Quillayute 

 did not itself flow through a. part of it and Ozette lake to the sea. 

 It is near base level throughout almost its entire course, has very 

 low banks, and is dammed in its lower course with log jams. Its 

 course, for the most part, is through Pleistocene deposits, and the 

 country through which it runs is low and practically level. Its 

 northern branch, however, has its channel incised in cemented rock, 

 it rising near Clallam peak. At a couple of places on this stream 

 water-power can be developed. 



Suleduck river, the northern branch of the Quillayute from the 

 east, rises near the Happy lake country and flows westward along 

 and at the foot of the western extension of the Olympics to near 

 Beaver, where it makes a bold bend to the southwest, which course 

 it continues till it mingles its waters with those of the Bogacliiel 

 to form the master stream. In its upper course it is an old stream. 

 In Pliocene times it flowed into a bay that then extended far up 

 the Quillayute trough. In the late Pliocene it likely joined the 

 other streams of the region and reached the sea beyond the present 

 shore-line. Then in Pleistocene times it again flowed into an arm 

 of the ocean that extended as far inland as Tyee, recent sea-shells 

 being found embedded in the clays at this plnce. The lower chan- 

 nels of the respective streams of the Quillayute country were 

 drowned at this time. This stream is capable of great power de- 

 velopment. About two miles above the Sulphur Springs, in the 

 Olympics, south of Port Angeles, there is a waterfall capable of 



