It was made the central railroad hub between east and western lines. In fact, even today it is still a major railroad hub.
How to cross river with elephants... was I guess the first major obstacle the Hannibal army faced...
no i cant its to hard sorry:(
unequal standards of living
austria
sierra Nevada
The two major railroads during the Homestead Act were the Union Pacific Railroad and the Northern Pacific Railroad.
The first obstacle was political, as the logical route would utilize Chicago and the American Midwest. The next obstacle was the terrain of the Canadian Rockies; rugged and barren over the Canadian Shield portion and mushy in the muskeg region of Northern Ontario. It took four years to complete.
The Union Pacific Railroad company faced challenges while they were building the railroad. Settlers didn't like that the government took land. Indians didn't like the railroads going through either.
The biggest obstacle to utilizing the natural resources of Central Asia is that most of the countries are landlocked. Azerbaijan is the gateway country to Central Asia since it has ports and it is emerging as an important exporter of oil and gas.
The answer would actually be conflict with the native americans
Eastern,Central,Mountain,Pacific
The steep slopes of Sierra, Nevada
Along the Pacific coast and in central-eastern Mexico.
Some of the major railroads are: Norfolk Southern Railway; Burlington Northern Railway; CSX Transportation; Union Pacific Railroad; Kansas City Southern Railway; Canadian National Railway; Canadian Pacific Railway
On May 10 , 1869 the track of the Union Pacific and Central Pacific met a Promontory Point , Utah Territory.
Mountaineous Core, Caribbean Lowlands, and Pacific Coastal Plain