v1 INDEX. 
Page 
Snow upon the Yakima Pass. ...--- ---- ------ --- 2-2 eee nee cee ene eee eee ce ene ee ene cee eee eee eens eee wee 46, 47, 48 
Examination of route in detail, from the crossing of the Columbia to Puget Sound, by the pass of the Columbia river. 48 
Motal length of the TOUtO-=<-s00ccmcejcane cee -orelcee =n maw= =eomnew wee nann ses seeleee-== s=~e= se aeeenmae=e=e=ss 49 
1 bd ee ee eee a eee 2 Bo Bs, 4 ree te eR ei a Fo ne yt I nS 49, 50,51 
Pel Ct: ee Se et a a a a et a en te es Pe yer = see 55 51, 52, 53 
Glidractoriatios OF tlle ZOUtO}=.5-- peceen pact ccec ces cern mop eseenes monn anlenen emn™ ete aaa emma ee een eter 53, 54 
General jelevatiOUs> os =~ cac- ose wict essa cee ces chee es osname bch ealebe aan e sea peceinbes none elle n= ann nee nee 53 
Sim (of @scente ADC GESCONUE, GoCrec coe oe ce ow eee cee ope ese eee = bo nei sinnele'sle'g= = le == =m en mim se een emme 53, 54 
MMP Gleseees eons cecees acco pecs satan eee eee a ae ee eels eae ee alee ee atin el none 54 
GL eae oro ccc c Sooo ak ceo acac cutee cus wereas See Deter arc a esen inte mse ae meme eee = a eam ail nl te 54 
CHOTA CS ESERIES AIOE ISEES BOSS STS CODD DOOR SECO ER Ig DIOS GEES PSS Oe OHO Te ies ee nas ets elma tN emis meres 55 
Estimated cost of road, with remarks.... .--- .-- 2-220 ceo s0 enc eee cocoa BESo On “ha enaoaasooouS soe see ee 55 
CHAPTER II. 
Route near the forty-first and forty-second parallels of north latitude. 
General description of the route from the Missouri river to Fort Bridger, on a tributary of Green river -----. ------ 56 
Examination of route in detail from the Missouri river to Fort Bridger, (comprising topographical description, 
grades, character of work, supplies of building material, fuel, water, snow, estimate of cost, &c).--..--.-------- 56, 57 
Examination of route in detail from Fort Bridger, through the Wahsatch mountains, to the south end of the Great 
SRA A he cee on Oe HIB ASeSe Sac SOO SESO CSS EE OOOSSe | ARDIESS A poo SECU OS Seco OSS SOS bese aes aS Sass Caco 57,58 
General description of the Great Basin near the latitudes of 41° and 42°...-..----. .----- ---- ----- +--+ +----- +--+ 58, 59 
Examination of route in detail from the south end of the Great Salt lake to the foot of the eastern slope of the Sierra 
IEC Re os e585 SOE Deg DOOR EDI SDS SS SISE o SEOs SSCS S00 Se SS ISSO BOSS DOS DOSESO DOSSIEOBSSSNNS pooseasese 59 
Plateau of the Sierra Nevada 59, 60 
Examination of the Madeliu Pass from the eastern foot of the Sierra Nevada to Round Valley, on the Sacramento 
PIV Olan oe ees eciee eee nee e heme SE an ape ee ae tae aaa a eae ee ee le eae ee le ed eae 5 60 
Examination of route in detail along the Sacramento river from Round Valley to 18 miles above Fort Reading.-.-.. 60 
Detailed description of the Sacramento river through the mountain district....-.-.---------------------. See 61 
Total length of the route... . -... 2-2-2 oe. one ee ese w coe men cow ene mown ane oem wens enn n enemas sone man w nna e= 62 
Timber, building materials, &c...--- 20. -2- = cone woe ane one conn e conn we ern en nn wees wenn sews con oe= ences o==s 62 
100 CARRS Bs Oe ec Seto SOUS Ee oe BOC DCO ESAS ECO IE CORD OSD OC OOD C55 SI9> OSE oS So Neon pose Sere ose 62 
Snow, climate, and 3vater.- <<. oes oo eae omen me biinn- anne == oan SERA 0 aS ADE SC IIIS DORE SOUS OOOO 62, 63, 64 
i a= sat cece ceeds cae - eo REISS ODOC SN Gy scne SEECSN ooo oe Sa sane se cose secon rene ee esas one e eee 64, 65 
atMALe OL PLODADe CORLIOL TORO naman. amc on - aismnemelaemnite mimes ine ieee lane mean eae la ne =i Seer eee 65, 66 
Characteristic features of the voute > ec se anes oem slattee hate ccitecicinceeeninn nm callaen iss wina-lecee==leere= elves 66 
Sum of ascents and descents. (See table, page 107.) 
Supplement to the examination— 
Description of the Rocky Mountain plateau on the route...--.. .--.---.-----------0+-- ate pore 36 ae 66, 67 
Description of the country east of the plateau, to the Mississippi river ....-..----- .--..----- ---+ seen eee 4 67, 68 
Description of the route from the Missouri river to Fort Bridger, by the South Pass.......----.- Se) eae 68, 69 
Ditto by Bridgotis Pasisos. coos oo one nite oan). oe bee aoe eeeds Joe eceeeek Lone eee * 69, 70 
Lengths; sumsjor ascents and: descents; (850... no sctwte ww cos 4 = <ehenlea an wcen lac neue beeees ieee ae 5ieaee 70 
Connexion of the South Pass with the head-waters of Green river, and connexion with the Columbia river.... 70 
CHAPTER II. 
Route near the thirty-cighth and thirty-ninth parallels of north latitude. 
General considerations determining the position of the route..--.. ---. ---. --- 2+ 222 ene wen wen ween ene n nee wee * 71 
Features of the country from the Rocky mountains to the Great Basin .,..----.----- e202 222 eens ween eee oe _ 71 
[CPE LT Gas se eects Seo Deeigeor oped seec a -eategd tessa oo soda eseecoos scat eae 71 
Timber, building materials, &c.-.---..---.--- Stebdcecssahcess ae ee eee Se ee PE ee * file 
BOi se anysa cow ean sae ebocte nada et dates ta sce ches Duce ten See tie See eRe eres <etee Pilea eee er ene S066 71,72 
CORI. 225 oon dinden cote een ose anse BONO a SOI RS PIC Ie AR SOON eens mace cios = 72 
Elevations of the Rocky Mountain passes, grades, tunnels, and construction of the road from the Coo-che-to-pa Pass, 
in the Rocky mountains, to Sevier lake, in the Great Basin. -......---.-------- ---- 200+ --------- Ween abkteoe ces 72 
ABU UO OL LOU ecein tee aie na eates akan cieneeleauEemicse seas toate tenons «ee aes Cee e ere spe edieee tock Societe = 72 
Sum of ascents and descents........-....----..2---.----- RO ETE eT hee 3 ele Ledeseewarmbesenss cos uses 72 
Examination of route in detail from the western foot of the Wahsatch mountains to San Francisco by the Tay-ee- 
chay-pah Pass, in latitude 35°, and by the Madelin Pass; lengths, sums of ascents and descents, and position and 
length of the shortest line from St. Louis to San Francisco...... se ccev decnve cnacavavencsndewsecnce cunsus uses 73 
