INTRODUCTION.  11 
List  of  geologic  folios,  showing  mineral  resources  described — Continued. 
Name  of  folio. 
Big  Trees. 
Absaroka 
Standingstone. 
Tacoma 
Fort  Benton. 
Little   Belt    Moun 
tains. 
Telluride. 
Elmoro . . 
Bristol. . 
61  Monterey 
62  Menominee   special 
Mother    Lode    di 
trict. 
Uvalde 
Tintic  special. 
66  Colfax . . . 
67  Danville . 
Walsenburg. . . 
Huntington... 
Washington. .. 
Spanish  Peaks. 
Charleston . . . 
Coos  Bay ...    . 
Coalgate 
Maynardville. 
Austin 
Raleigh. 
Rome.. 
Atoka. . 
Norfolk . 
Chicago . 
State. 
Cal. 
Wyo.. 
Tenn. 
Wash. 
Mont  . 
do 
Colo 
do.. 
Va.-Teni 
La  Plata Colo 
Va.-W.  Va. 
Mich 
Cal.. 
Tex.. 
Utah. 
Cal 
Ill.-Ind. 
Colo . 
W.Va.-Ohio. 
D.  C.-Va.- 
Md. 
Colo. 
W.  Va. 
Oreg. . . 
End.  T. 
Tenn . . 
Tex. 
W.  Va... 
Ga.-Ala. . 
Ind.  T... 
Va.-N.C. 
Masontown-Union- 
town. 
New  York  City 
Ditney . 
Oelrichs 
Ellensburg. . 
Camp  Clarke. 
Scotts  Bluff.. 
Port  Orford. 
Cranberry . . . 
Hartville . 
Ill.-Ind... 
Pa 
N.  Y.-N.  J 
Ind 
S.  Dak.-Nebr 
Wash. 
Nebr. . 
....do. 
Oreg. . 
Tenn.. 
Wyo. 
Area. 
in 
sq.  m. 
1,706 
963 
812 
3,234 
236 
950 
957 
237 
938 
125 
428 
1 ,  040 
229 
925 
228 
944 
«I.",N 
465 
950 
938 
871 
980 
963 
1 ,  030 
944 
986 
986 
1 ,  913 
892 
458 
906 
871 
820 
892 
892 
878 
903 
Turner,  H.  W.;  Ran- 
some,  F.  L. 
Hague,  A 
Campbell,  M.  R 
Willis,     B.;      Smith, 
G.  o. 
Weed,  W.  H 
Cross,   W.;      Turing- 
ton,  C.  W. 
Hills,  R.  C 
Campbell,  M.  R. 
Cross,  W.;  Spencer, 
A.  C;  Purington, 
C.  W. 
Darton,  N.  H 
Van  Hise,  C.  R.;  Bay- 
ley,  W.  S. 
Rah  some,  K.  L 
Vaughan,  T.  W 
Tower,  G.  W.;  Smith. 
G.     O.;     Emmons, 
S.  F. 
Lindgren,  W 
Campbell,       M.      R.; 
Leverett,  F. 
Hills,  R.  C 
Campbell,  M.  P 
Darton,        N.        H. 
Keith,  A. 
Hills,  R.C. 
Campbell,  M.  R. 
Dilier,  J.  S 
Taff,  J.  A 
Keith,  A 
Hill,  R.T.;  Vaughan, 
T.  W. 
Campbell,  M.  R 
Haves,  C.  W. ... 
Taff,  J.  A 
Darton,  N.  11.. 
Alden,  W    C ... 
Campbell,  M.R. 
Merrill.  F.  J.H.;Hol- 
lick,     A.;     Darton, 
.  N.    H.;    Willis,    B., 
Salisbury,    R.    D.; 
Dodge,  R.  E.;  Pres- 
sey,  H.  A. 
Fuller,    M.    L. 
ley,  G.  H. 
Ash- 
Smith, 
G.  O 
Darton,  N.  H 
.   .do-    - 
Dilier, 
J.  S 
Keith, 
A 
Smith, 
W.S.T 
Mineral  products  described 
as  occurring  in  area  of 
folio. 
Gold,  silver. 
Silver. 
Coal,  oil,  lime,  clay. 
Coal,  stone,  clay. 
Cold,  silver,  lead,  iron,  gyp- 
sum, eoal,  stone,  under- 
ground water. 
Coal,    silver,    lead,    copper, 
l  iron,  sapphires,  mineral 
water. 
Gold,  sih  i  r. 
Coal,     stone,     underground 
water. 
Coal,    iron,    zinc,    barite, 
marble,  clay. 
Gold,  silver,  coal. 
Iron,  stone,  clay,  road  metal. 
Iro. 
Gold,    silver,    manganese, 
quicksilver,  stone. 
Asphalt,  gold,   silver,  iron, 
coal,  underground  water. 
Gold,  silver,  lead,  eo/>/ier. 
Gold,  stone,  clay,  water. 
Coal,  clay,  gravel,  under- 
ground water. 
Coal,  stone,  clay,  under- 
ground water. 
Coal. 
Gold,  iron,  clay,  stone, 
road  materials,  green- 
sand  marls,  underground 
water. 
Coal,  stone,  gold,  silver, 
underground  water. 
Coal,  salt,  oil,  gas,  iron. 
Coal,  gold,  stone. 
Coal,  stone,  clay. 
Marble,  coal,  'stone,  lead, 
zinc,  lime,  road  mate- 
rials, clay. 
Oil,  stone,  lime,  clay,  ce- 
ment rock,  underground 
water. 
Coal 
Bauxite,    iron,    slate,    lime. 
Coal,  stone,  clay. 
Sand,  clay,  underground 
water. 
Stone,  clay,  molding  sand, 
water. 
Coal,  oil,  day,  stone,  glass 
sand,  iron. 
Marble,  granite,  road  mote- 
rial,  clay,  iron,  wa  ter. 
Coal,  gas,  clay,  stone,  iron. 
Stone,  gypsum,  lime,  vol- 
canic ash,  underground 
water. 
Building  stone,  road  metal, 
underground  water. 
Volcanic  ash. 
Do. 
Coal,  gold,  platinum. 
Mica,  gold,  brick  clay,  iron 
ore. 
Iron  ore,  copper,  lime, 
building  stone,  gypsum, 
tire  clay. 
