CHRONOLOGIC LIST OF WORKS EXAMINED. 31 



proceeding inland during- the following winter, prospected without success on 

 Kugrua River, about 90 miles from the coast, during- the summer of 1902, where 

 they remained in camp during the next winter, in latitude approximately 69°, 

 longitude 146°. 



Mr. Marsh reports that this section of the country is barren or timberless, and 

 consists largely of tundra swamps and niggerheads, underlain by rocks which he 

 regards as a geologically young and nonmineral-bearing limestone formation. The 

 country is reported to be plentiful in game, of which caribou, bear, wolves, foxes, 

 and ptarmigan are the most important, the latter being very abundant. Kugrua 

 River, which flows northward into the Arctic Ocean, is estimated to be about 280 

 miles long. Besides the Kugrua, four other rivers of considerable- size are reported 

 to enter the ocean between the Turner and the Colville. 



In the spring of 1903 Mr. Marsh crossed the divide to the south of the Kugrua, 

 where he reports that he found a mineralized zone on the headwaters of Chandlar 

 River, which stream he descended to the Yukon. 



During the summer of 1903, it is reported, a prospecting party, of which James 

 L. Reed and Walter Lucas were members, crossed from the Kowak by way of the 

 headwaters of the Noatak and of the Alatna, a tributary of the Koyukuk, to the 

 Killik, a tributary of the upper Colville, which they descended to its mouth. The 

 Killik is said to transport much floating- ice, to be about 100 miles long, and to have 

 man}- rapids in the lower 50 miles of its course. They then explored the Colville 

 for a distance of 175 miles below the mouth of the Killik and for 50 miles above it, 

 and found this section of the Colville to be 400 to 500 yards wide and navigable, 

 with a current of about 6 miles an hour. The topography of this part of the basin 

 is reported to be undulating, with low hills, as described by Howard, and the rocks 

 to consist of a sandstone formation in which thick veins of bituminous coal crop out 

 along most of the creeks. This coal was burned by the prospectors in their camp 

 fires. As no trace of gold was found, the formation is inferred to be probably non- 

 auriferous. 



Excepting willows, which occur along the streams, and are often of large size, 

 the country is timberless; there is no spruce. Game is present and caribou are 

 plentiful. 



CHRONOLOGIC LIST OF WORKS EXAMINED. 



1784. Cook, James. A voyage to the Pacific Ocean * * * for making discoveries in the northern 



hemisphere. 3 vols. Vol. 2. London. 4°. 421, 548, and 556 pp. 

 1796. Heaene, Samuel. A journey from Prince of Wales's fort, in Hudson's Bay, to the Northern 



Ocean * * * in the years 1769, 1770, 1771, and 1772. Dublin. 8°. 459 pp., 5 maps, 



4 pis. 

 1801. Mackenzie, Sir Alexander. Voyages from Montreal on the Eiver St. Laurence through the 



continent of North America to the Frozen and Pacific oceans, in the years 1789 and 1793, 4°. 



viii, cxxxii, 412 pp., 3 maps, 1 pi. London. 



