Gold rush not 100 percent sure but take a shot.
because the mountain is too high
Mules.
NO! Pacific Ocean
Travel time across the country took about six months before the Transcontinental Railroad. That time was reduced to six days after its completion.
Settling on or near rivers was a thing common to all peoples, even native Americans as water travel was a or the primary mode of transport and travel.
World Nomads Travel Insurance protects people when they are traveling across the states, or across the world. They insure you whether you travel by car, boat, or plane.
Properly in the 1500s
The eruption of the Eyjafjallajokull volcano on 14 April 2010 affected the economic, political and cultural activities in Europe and across the world. There was extensive air travel disruption caused by the closure of airspace over many countries affecting the travel arrangements of hundreds of thousands of people in Europe and elsewhere. Sporting, entertainment and many other events were cancelled, delayed or disrupted when individuals or teams were unable to travel to their destination.
It can travel across the vacuum of space.
Jet lag
they travel across land part of the time
why was travel across the Sahara desert difficult
If it was across the sea, people traveled on boats to the new land. If it was in the same continent, they would travel by foot or in handcarts.
they would use a boat or just do not go across town
none, cause it is not famous
Transcontinental railroad
One example of how people use the sea, is to fish for food. People also use the sea to travel across.