Bisbee daily review., 1902-07-20
THE MINING FIELD
THE THUNDER MOUNTAIN
A Description of the Great Idaho
 Discovery.

The mine most talked about now is the great Thunder Mountain in Idaho. There is one Thunder Mountain Min ing company, but a dozen others that have been named after it. Thunder Mountain has become a fad among those who are naming mining corpo- rations for the attraction of soock buyers. The following description of the original Thunder Mountain has been furnished by the correspondent of the Portland Oregonian:
 ''I have carefully weighed all the evidence for and against Thunder Mountain; have prospected the rock, had it assayed, and seen as much of the country as was to be seen. l un- hesitatingly say that up to the present time there is not particle of evidence against the camp. cbsolu.ely Ione, and there is much in its favor.
 The development on the Dewey group has thus far shown it good. and with every probability of it's being a big property. Back of Thunder Noun tain is Lightning Peak. Some men brought down surface dirt from it and rocked out over $50 in a couple of hours. South of the Dewey. and fol- lowing it's general strike, values have been found all along. From the rock, from an assessment hole. mile to the south. l got an assay of s5.29 The owner assured me it would not carry anything. and the reason he had done his work there was because it was the easiest place where il could be 'one
 Across Monumental. and to the
 
 dykes. bearing close resemblance to that of the Dewey cut the mountains with the same general direction strike. Along these dykes good values have been found. and reliable disinterested men have assured me that they have found colors in banning over con siderable area of that country. The same can be said of the SunnysiGe district. Surface values can be found over wide area and in nearly every direction. That they will go down development alone can tell, but it is far from discouragins sign of value at depth 10 find value at the surface
 The important thing for the pros pector to learn in the Thunder Moup- tain district is what rocks carry the values. He will find different condi- tions than he has probably encnrn- terd elsewhere. There are no quartz lodges in the immediate district The value seems to be in the porphyry. Rock of this character that l brought out, and which had "a lean and hung " look" and I would have pronounced valueless. assayed we'll. A creamy white porphyry went s2.31; a bluish colored porphyry carrying large white crystals of feldspar went $12.S5; and a blackish blue rock yielded $29.6S gold. Of course, there is ore of much higher grade. I brought out slab ot rock as large ss my two hands that is plas- tered with gold-it is specimen and a pretty one. but not to be taken into account in reckoning the camps posi- bilities from business standpoint.
 There, is an abundance of timber and water in the country; water pow CT can be developed most anywhere; and if the ores are free milling, and those who have treated them assure me they are. it will possible to mine and mill at a very low cost A 100- stamp mill and 50-stamp mill have already been ordered by two of the companies operating in there, and a wagon road will soon be in course of construction. This is the evidence in favor of the camp"