THE discovery of gold on the Innoko in the winter of 1906-7, and the "strike" on the Iditarod, a tributary of the Innoko, some three years later, opened up a new region of Alaska. It is characteristic of a gold discovery in a new district that it sets men feverishly to work prospecting all the adjacent country, and sends them as far afield from it as the new base of supplies will allow them to stretch their tether. A glance at the map will show that the Innoko and Iditarod country lies between the two great rivers of Alaska, the Yukon and the Kuskokwim, much lower down the Yukon than any of the earlier gold discoveries; that is to say that while the Tanana gold fields lie off the Middle Yukon, the Circle fields off the upper Yukon, the Iditarod camp belongs to the lower river. The Innoko workings were not extensive nor very rich, but they furnished a base for prospecting from which the Iditarod was reached, and Flat Creek, in the latter district, promised to be wonderfully rich. Immediately upon the news of this strike reaching the other camps of the interior, preparations were made far and wide for migrating thither upon the opening of Yukon navigation, and the early summer of 1910 saw a wild stampede to the Iditarod. Saloon-keepers, store-keepers, traders of all kinds, and the rag-tag and bobtail that always flock to a new camp were on the move so soon as the ice went out. From Dawson, from the Fortymile, from Circle, from Fairbanks, from the Koyukuk, and as soon as Bering Sea permitted, from Nome, all sorts of craft bore all sorts of people to the new Eldorado, while the first through steamboats from the outside were crowded with people from the Pacific coast eager to share in the opportunity of wealth. The sensational magazines had been printing article after article about "The incalculable riches of Alaska," and here were people hoping to pick some of it up. Iditarod City sprang into life as the largest "city" of the interior; the centre of gravity of the population of the interior of Alaska was shifted a thousand miles in a month.