-13-- 
400 miles long by 100 to 200 miles wide. All the ^/estern part of this plain 
drains into Lake Titicaca ana Lake Poopo, an inland "basin • The mters of 
the latter are salt anu the southwestern part of the plain is a salt desert 
containing besides coainon salt inany other minerals $ especially borax^ 
North of La laz t.:e eastern range slopes off into the 'Yungas region which 
is montana or wooded slope • Btill further north lies the Beni the rain 
forest of the Amazon valley* This is sparsely inhabited except by Indians and 
fomerly was exploited chiefly for rubber. Trinidad is tbB chief to^m of this 
district. 
Tiie eastern part of Bolivia is a plain sloping to the Paraguay river whicb. 
foms the boundary between Bolivia and Brazil. This plain merges on tne south 
* * 
into the plains of northern Argentine, the drainage being into the Paraguay 
river. The southeastern part is called tlie Ghaco. Boms of this territory 
is in dispute with Biraguay. The eastern part of Bolivia is the Santa Cruz 
region, mainly drvoted to stock-raising, with Banta Cruz as the chief tovm. 
The- climate becomes more arid toward trie south a id much of the region, 
especia..ly toward the sruthwe.,.t ^ is desert. 
Most of the inhabitants of Bolivia are to be found in the southwestera 
fourth of the country from Lake Titicaca to the provinces of Coohaba®ba and 
Tarija, excluding the western parts of the provinces of Oruro and Ibtosf 
wMch are alkali deserts. 
The main industry of Bolivia is mining, but agriculture occupies an 
important Dosition. Muca of the alto or high plain is too cold for crops. 
BarjBy anr b^ans are grown in protected places. These crops and potatoes, 
Ttieat, and alfalfa are grown on slopes and hi^ valleys down to the montana 
