The twilight lasts all night and the Northern Lights are very common. Then in summer it is exactly the other way. The day there in July is about twenty hours long. The sun rising and setting in the north. A great deal has been said about the short seasons, but as a matter of fact a miner can work 12 months in the year when in that region. Spring opens about May 1st and the ice commences to break up about that time. The Yukon River is generally clear of ice about May 15. The best part of the miner's work commences then and lasts till about October 1st. The winter commences in October but the miner keeps on working through the winter. The rainy season commences in the latter part of August and lasts two or three weeks. A fall of two feet of snow is considered heavy. There is a wide difference in the quantity of snow that accumulates on the coast and the ranges in the interior where the principal mining claims are located. While the fall of snow on the coast is heavy the depth of snow as far down as the Yukon, Stewart and Klondyke rivers is inconsiderable. In my new work on this territory entitled "Klondyke Facts" I deal more largely on the climate of this region. There are still good diggings at Circle City in Alaska, but nearly all the miners have left for Klondyke, not being satisfied with the pay dirt which they were working. I know at least 20 good claims in Circle City. Fort Cudahy, or as it is sometimes called Forty Mile Creek, is now practically exhausted as a mining camp, and the miners have left for other diggings. There will undoubtedly be new and valuable diggings discovered very quickly along this region as it is certain that this enormous territory is rich in gold-bearing districts. The entire country is teeming with mineral wealth. When mining operations commence on coal it will be specially valuable for steamers on the various rivers and greatly assist transportation facilities. In the next few years there will certainly be recorded the most marvellous discoveries in this territory, usually thought to be only a land of snow and ice and fit only to be classed with the Arctic regions. It is marvellous to state that for some years past we have been finding gold in occasional places in this territory, but from the poverty of the people no effort was made to prospect among the places reported. It is my belief that the greatest finds of gold will be made in this territory. It is safe to say that not 2 per cent. of all the gold discovered so far has been on United States soil. The great mass of the work has been done on the Northwest territory, which is under the Canadian Government. It is possible however that further discoveries will be made on American soil, but it is my opinion that the most valuable discoveries will be further east and south of the present claims, and would advise prospectors to work east and south of Klondyke. THE YUKON RIVER AND ITS TRIBUTARIES.