GEOLOGIC  ATLAS  OF  UNITED  STATES. 
Department  of  the  Interior  United  States  Geological  Survey  J.  W. 
Powell  [beginning  with  folio  21,  Charles  D.  Walcott],  Director 
Geologic  Atlas  of  the  United  States  Livingston  folio  Montana 
[-Washington  folio  District  of  Columbia-Mary  land-Virginia]  Index 
map  [map]  List  of  sheets  description  topography  areal  [begin- 
ning with  folio  37,  historical]  geology  economic  geolog}^  structure 
sections  columnar  sections  Folio  1  [-70]  Library  edition  [or  Field 
edition]  Livingston  [-Washington]  Engraved  and  printed  by  the 
U.  S.  Geological  Survey  Bailey  Willis  [beginning  with  folio  51, 
George  W.  Stose],  editor  of  geologic  maps  S.  J.  Kiibel,  chief 
engraver     1894  [-1901] 
Folio.     70  numbers. 
The  Geologic  Atlas  of  the  United  States  is  the  final  form  of  publication  of  the 
topographic  and  geologic  maps.  The  atlas  is  issued  in  parts,  progressively  as  the 
surveys  are  extended,  and  is  designed  ultimately  to  cover  the  entire  country. 
Under  the  plan  adopted  the  entire  area  of  the  country  is  divided  into  small  quad- 
rangular districts  (called  quadrangles),  bounded  by  certain  meridians  and.  parallels, 
each  quadrangle  being  designated  by  the  name  of  a  principal  town  or  some  promi- 
nent natural  feature  within  it.  The  maps  and  textual  descriptions  of  each  quad- 
rangle are  issued  as  a  folio  of  the  Geologic  Atlas. 
Each  folio  contains  topographic,  geologic,  economic,  and  structural  maps,  together 
with  textual  descriptions  and  explanations,  and  is  designated  by  the  name  of  the 
quadrangle  which  it  describes.  Two  forms  of  issue  have  been  adopted — a  library 
edition  and  a  field  edition.  In  both  the  sheets  are  bound  between  heavy  paper 
covers,  but  the  library  copies  are  permanently  bound,  while  the  sheets  and  covers 
of  the  field  copies  are  only  temporarily  wired  together. 
The  folios  are  sold  at  twenty-five  cents  each,  except  such  as  contain  an  unusually 
large  amount  of  matter,  which  are  priced  accordingly.  The  folios  ready  for  distribu- 
tion are  as  follows: 
Published  folios  of  Geologic  Alius  of  United  States. 
No. 
Name  of  folio. 
State. 
Limiting  meridians. 
Limiting  parallels. 
Area,  in 
square 
miles. 
Price, 
in 
cents. 
1 
Livingston 
Montana  .. 
110°-111° 
45°-46° 
3, 354 
25 
2 
Ringgold 
r  Georgia 
Vlennessee . 
j                        85°-85°  30' 
34°  30' -35° 
980 
25 
3 
Placerville 
California  . 
120°  30' -121° 
38°  30' -39° 
932 
25 
4 
Kingston  a 
Tennessee . 
84°  30' -85° 
35°  30' -36° 
969 
25 
5 
Sacramento 
California  . 
121°-121°  30' 
38°  30' -39° 
932 
25 
6 
Chattanooga  a 
Tennessee  . 
85°-85°  30' 
35°-35°  30' 
975 
25 
7 
Pikes  Peak  a 
Colorado  .. 
105°-106°  30' 
38°  30' -39° 
932 
25 
8 
Sewanee 
Tennessee . 
85°  30' -86° 
35°-35°  30' 
975 
25 
04 
