National Geographic : 1902 Aug
FIELDWORK OF THE party hopes to cross the Tanana River at the mouth of the Cantwell, and to investigate the Tanana and Birch Creek gold districts, reaching the Yukon at Circle City, thus obtaining a chance to examine the important and little known gold fields on the lower Tanana. Mr Arthur J. Collier, geologist, ac companied by two men, will start at the international boundary and carefully study the coal deposits of the Yukon section as far as the delta, visiting also some of the placer camps accessible from the river, which have not yet been in vestigated. The copper deposits of the Chitina River, a tributary of the Copper, have excited a great deal of interest among miners and capitalists. There have been many parties outfitted to prospect this region, and some preliminary develop ment has been made. Prospecting has also been done in a second copper belt in the northern part of the Copper River and in the upper Tanana and White River basins. These two belts are to be the subject of special investigation during the coming season. The Chis tochina gold fields, also included in the Copper River basin, have become im portant producers of placer gold. A survey of their entire area is contem plated. The surveys of the Copper River basin will also throw a good deal of light on the proposed railway route from Valdes to the Yukon River, and they will cover large areas which are believed to have value for stock-raising and for cultivation. The work in this region has been di vided. One party, in charge of Mr F. C. Schrader, geologist, with Mr D. C. Witherspoon, topographer, will map the Upper Copper River Basin and adjacent portions of the Tanana Basin, giving special attention to the upper northern belt; the other party, in charge of Mr T. C. Gerdine, topographer, with Mr Walter C. Mendenhall, geologist, will GEOLOGICAL SURVEY 325 map the Chistochina gold fields and will give attention to the southern copper belt. In addition, Mr W. J. Peters, topog rapher, will make a map of the Juneau mining district as a base for future de tailed geologic studies. The Juneau district is the most important in all Alaska, containing, as it does, the fa mous Treadwell mine. Hawaiian Islands. - Dr Whitman Cross will suspend his regular field work in Colorado for the present sea son and will spend a portion of the year in the Hawaiian Islands, for the purpose of investigating volcanic phe nomena. Mr G. K. Gilbert does not expect to carry on any fieldwork, but will be en gaged throughout the year in the prep aration of reports. Prof. Lester F. Ward will continue the preparation of reports on the Meso zoic floras of the United States. FOREST RESERVES Mr Henry Gannett, in charge of the examination of forest reserves, will ex amine forest reserves in Utah, and will visit the different parties working in the field under his direction. Mr Arthur Dodwell will complete the examination of the San Francisco Moun tain Reserve of Arizona, and will con tinue work to the southward and east ward in the Black Mesa Forest Reserve, Arizona, as far as the season will per mit. Mr Theodore F. Rixon will commence the examination of the Black Mesa For est Reserve, Arizona, completing, with Mr Arthur Dodwell, the entire area of the reserve. Mr Fred G. Plummer will examine the Uinta Reserve, in the northern part of Utah, a rather narrow, irregular strip of country, lying mainly along the top and north slopes of the Uinta Range.