COPPER  MINES  OF  THE  UNITED  STATES— GEORGIA.     107 
Production  of  copper  in  Colorado,  190JJ.-5,  by  counties. 
County. 
Boulder  . . . 
Chaffee 
Clear  Creek 
Custer 
Dolores 
Eagle , 
Gilpin 
Gunnison. . 
Hinsdale. .. 
Lake 
La  Plata . . 
1904. 
Pounds. 
5,  .340 
456,  556 
369, 778 
10,910 
12, 201 
,27,042 
604,791 
1,864 
10,  530 
3,627,846 
2, 374 
1905. 
Pounds. 
14,106 
869, 507 
355, 740 
862 
71,122 
65, 179 
638,597 
36,997 
24, 532 
4,486,117 
425 
County. 
Larimer. . . 
Ouray 
Park 
Pitkin 
Saguache . . 
San  Juan. . 
San  Miguel 
Summit 
1904. 
Pounds. 
3, 780 
431,048 
2,908 
48, 066 
3,  575, 219 
245,709 
435,  (Hi2 
1005. 
Pounds. 
4,336 
524,199 
38, 374 
127, 094 
2,988 
2,274,106 
272, 513 
44, 033 
9,850,827 
The  smelter  returns  for  1905  indicate  that  the  production  of  copper  from  Colorado 
amounted  to  10,736,151  pounds  for  that  year.  This  is  after  the  product  of  other  States 
has  been  excluded  from  the  smelter  returns.  The  greatest  return  is  from  the  American 
Smelting  and  Refining  Company,  which  had  an  output  of  8,920,064  pounds,  of  a  value  of 
$1,382,750. 
GEORGIA. 
The  copper  product  of  Georgia  is  at  present  insignificant,  amounting  to  8,841  pounds 
in  1905,  in  the  gold  and  silver  bearing  matte  from  the  Seminole  or  Magruder  mine  in  Wilkes 
County.     This  deposit  was  described  by  the  writer  in  Bulletin  No.  225,  pages  180-183. « 
The  Ducktown  (Tenn.)  copper  belt  extends  southward  into  Fannin  County,  Ga.,  where 
the  Sallie  Jane,  Lot  No.  20,  and  Mobile  mines  were  worked  many  years  ago.  The  second 
named  has  recently  been  reopened.  The  mine  is  about  4  miles  south  of  Isabella  Ferry, 
between  Pierceville  and  Frytown,  Ga.  It  is  owned  by  J.  T.  Howe  and  is  worked  under 
the  superintendence  of  John  Quantrell.  The  development  consists  of  a  shaft  100  feet 
deep,  with  a  drift  driven  200  feet  to  the  east  and  900  feet  to  the  west.  At  the  end  of 
the  east  drift  there  is  a  winze  100  feet  deep,  with  a  second  drift  100  feet  long  at  the  bottom. 
These  workings  show  the  vein  to  average  20  feet  in  width.  The  ore  is  said  to  carry  from 
3  to  30  per  cent  of  copper.  In  the  upper  levels  green  carbonates  are  found,  with  the 
usual  black  ore  near  the  water  level  and  the  gray  and  so-called  yellow  ore  belovr.  The 
presence  of  feldspar  in  the  ore  is  notable.  No  ore  has  as  yet  been  smelted  or  shipped. 
The  information  concerning  this  property  has  been  furnished  by  Mr.  L.  La  Forge. 
IDAHO. 
The  copper  production  of  Idaho  for  the  past  three  years  is  as  follows:  1903,  569,480 
pounds;  1904,  4,518,034  pounds;  1905  (official),  6,661,400  pounds.  This  production 
comes  from  six  counties— Bannock,  Boise,  Custer,  Lemhi,  Shoshone,  and  Washington. 
The  Snowshoe  mine  in  Shoshone  County  is  the  chief  producer,  the  balance  coming  mainly 
from  gold-silver  properties.  Fremont  County  yielded  copper  ore  in  1903,  but  not  in 
1904.  The  Washington  and  Custer  county  (Loon  Creek  and  Alden  @reek)  districts  yielded 
gold-bearing  copper  ores.  The  Cceur  d'Alene  ore  goes  to  Butte  and  Tacoma  smelters; 
that  of  the  other  counties  is  reduced  in  furnaces  in  other  counties. 
In  the  Fort  Hall  mining  district,  Bannock  County,  the  PocatelloGold  and  Copper  Mining 
Company  is  working  a  "well-defined  fissure  vein  carrying  disseminated  bornite."  In 
1904  ore  was  shipped  to  the  copper  smelters  of  Mackay  and  Salt  Lake.     The  Fort  Hall 
a  Contributions  to  Economic  Geology,  1904. 
