326 Geographical Notes. 
B. Tue YELLowstone GEYSERS. 
under our notice are as follows: 
1. A picturesque description of the Geyser region, based 
C. Rovre or tae Norruern Pacrric Ramroad. 
€ prosecution of a second railroad route across the com 
tinent, by way of the Upper Missouri and the Columbia Mer? 4 
has added much to our knowledge of that country. 
region which was first made known by the journey of Lewes) 
and Clark in 1804-5 and 6; was surveyed by Gen. LL Steven’ 
in 1853-4-5 (whose report was published as vol. xi, 
the U. 8S. Pacific Railroad Report), and was again careful 
examined by Capt. John Mullan, U. S. A., who construc 
from 1858 to 1862, a military road from Fort Walla Walla om 
the Columbia river to Fort Benton on the Missour. 1368 
ie Capt. Mullan was printed by the Government 1D 
e Northern Pacific Railroad published last ym. 
report of a reconnaissance of the route made in 1869, Oy 
W. Milnor Roberts. The same engineer has been Pag 
a ‘ 
Mountain Divide, between Lewis and Clark’s Pass on the BOM" 
‘ 
laiee pacha Ses hr rity ee Le aie Medes Sil Ly 
(oie oie Ee aa tee fee SS Ne ee ed 
