ADVERTISEMENT. 



IX 



Lexington (Nebr.), an overloaded stream; Harrisburg (Pa.), Appalachian ridges; Poteau Monntain 

 (Ark.-Ind. T.), Ozark ridges; Marshall (Ark.), Ozark Plateau; West Denver (Colo.), hogbafks; 

 MouHt Taylor (N. Mex.), volcanic peaks, plateaus, and necks; Cucamouga (Cal.), alluvial cones; 

 Crater Lake special (Greg.), a cratei'. 



GEOLOGIC ATLAS OF THE UNITED STATES. 



The Geologic Atlas of the United States is the final form of publication of the topographic and 

 geologic maps. The atlas is issued in jiarts, progressively as the surveys are extended, and is designed 

 ultimately to cover the entire country. 



Under the pl.an adopted tlie entire area of the country is divided into small rectangular districts 

 (designated i/Hn.rfraH.f/?es), bounded by certain meridi.-ins and parallels. Tlic unit of survey is also the 

 unit of publiCMtiou, and the maps and descriptions of each rectangular district are issued as a folio of 

 the Geologic Atlas. 



Each folio contains topographic, geologic, economic, and structural mai)S, together with textual 

 descriptions and explanations, and is designated by the name of a principal town or of a prominent 

 natural feature within the district. 



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 :ire permanently bound, while 

 the sheets and covers of the field copies are only temporarily wired together. 



Under the law a copy of each folio is sent to certain public liliraries and educational institu- 

 tions. The remainder are sold at 25 cents each, except such as contain an unusual amount of matter, 

 which are priced accordingly. Prepayment is obligatory. The folios ready for distribution are listed 

 below. 



Name of sheet 



State. 



Limitiug meridians. 



Limiting parallels.' 



square 

 miles. 



Price, 



30 



31 



32 



33 

 34 

 35 

 36 

 37 



Livingston 

 Einggolfl .. 



Montana... 



/Georgia 



\Tennessee . 



Placerville California. . 



Kingston I Tennessee . 



Sacramento I California.. 



Chaltanooga l Tennessee . 



Pikes Peak (out of slock) . . 



Sewauee 



Anthracite-Crested Butte . 



Harpers Ferry 



Jackson . 



Estillville . 



Fredericksburg . 



Staunton 



Lassen Peak- 

 ICnoxville 



Colorado 



Tennessee 



Colorado 



[Virginia 



< West Virginia.. 

 (Mai-yland 



C-llifornia 



{Virginia 

 Kentucky 

 Tennessee 



/Maryland 



\ Virginia 



/Virginia 



\West Virginia.. 



California 



I (Tennessee 



(North Carolina . 



Marysville California 



Smartsville California 



[Alabama.. 

 Stevenson i< Georgia... 



I [Tennessee 



Cleveland Tennessee 



Pikeville 1 Tennessee 



McMinnville Tennessee 



Nomini |^I.»''\>"n<' 



IVirginia 



Three Forks " ' 



Loudon 



Pocaliontaa . 

 MorriBtown. 

 Piedmont... 



Montana 



Tennessee 



/Virginia 



iWest Virginia . , 



Tennessee 



/Maryland 



(West Virginia.. 



Nevada City . 



/Yellowstone 

 tional Park, 



Califo 



AVyoining . 



(Nevada Citv.) 



..•^ Grass Vallev. 



(Banner Hili .1 



(Gallatin ..] 



Na- ) Can yon... ( 



(Shoshone, f 



(Lake \ 



Pyramid Peak I California 



Franklin I|^,''-g;>'l? ■-.■•.■ •- 



|\vvest \ irginia . 



Bricevillc Tennessee 



Buekliannon [ West Virginia 



Gadsden Alabama 



Pueblo .Colorado 



Downieville I California 



I10°-H1° 

 85=>-85° 30' 



120° 30'-121 = 

 84° 30'-85= 



121°-1210 30' 

 85°-85° 30' 



1050-1050 30' 



85° 30'-86° 



IO60 45'-l(l70 15' 



770 30'-78o 



120° 30'-121o 



82° 30'-83° 



770,770 30' 



79°-70° 30' 



121°-122o 



83° 30'-84° 



121° 30' -122° 

 121°-121° 30' 



84° 30'-8o° 

 850-85° 30' 

 85° 30'-8(j° 



70° 30 '-77° 



lll°-112o 

 84°-810 30' 



81°-81° 30' 



83°-83o 30' 



79°-79o 30' 



(121= 00' 25"-1210 03' 45" 



35"-l21° 05' 04" 



05"-121o 00' 25" 



(121= 00' 

 n-Jlo 01' 

 (120° 57' 



120O-120O 30' 



790-790 30' 



840-S40 30' 



8OO-8O0 30' 



86°-86° 30' 



104° 30'-105° 



120° 30'-121° 



450-46° 



34° 30'-35° 



38° 30'-39° 

 35° 30'-36o 

 38° 30'-39° 

 350-3.50 30' 

 380 30'-39o 

 350-350 30' 

 380 45'-39° 



390-390 30' 



38°-38° 30' 



36° 30'-37° 



38°-38o 30' 



38o-38° 30' 



40O-41O 



35° 30'-36o 



390-390 30' 

 39°-390 30' 



34° 30'-35° 



350-350 30' 

 350 30'-:)6o 

 350 30'-36° 

 380-380 30' 



450-46° 

 35° 30'-36° 



36°-36° 30' 

 3n°-390 30' 



390 13' 50"-39' 17' 

 390 10' 22"-39° 13' 

 39° 13' 50"-39° 17' 



3,354 



980 



932 

 969 

 932 

 975 

 932 

 975 

 465 



925 



938 



957 



938 



938 



3,634 



925 



925 

 925 



980 



975 

 969 

 969 



938 I 



3.354 

 96'J 



951 



963 ; 



925 



11.65 

 12.09 

 11.03 



3,412 



25 

 25 

 25 

 25 



25 

 25 



MON XXXIX- 



-18 



