Fear of the unknown.
The Appalachian Mountains served as the greatest barrier to the westward migration of early American settlers in the eastern US. Their rugged terrain and high elevations made travel difficult, limiting access to the fertile lands beyond. Settlers often had to navigate treacherous paths and face harsh weather conditions, which impeded their movement and exploration of the western territories. This natural obstacle significantly influenced settlement patterns and the timing of westward expansion.
The Pacific Ocean
Wm. H. Nobles has written: 'Speech of the Hon. Wm. H. Nobles' -- subject(s): Description and travel, Early projects, History, Pacific railroads, Roads, Travel
Appalachian mountains
Wellman Packard has written: 'Early emigration to California, 1849-1850' -- subject(s): Biography, Description and travel, Overland journeys to the Pacific, Pioneers
Policies of empire-building in the Pacific
The Pacific Ocean is the largest division of the hydrosphere and covering 46% of the surface of the total extent of the oceans and seas.A early early explorer found the Pacific Ocean who knows when......
pacific ocean
A Pacific-wide tsunami is a tsunami that affects multiple countries or regions surrounding the Pacific Ocean. It is usually generated by a large underwater earthquake or volcanic eruption, and the tsunami waves can travel across the ocean, impacting various coastlines. Early warning systems are in place to help mitigate the impact of such tsunamis.
7 am, Pacific Standard Time 8 am, Pacific Daylight Time (from mid-March through early November)
india
The Appalachian Mountains were this sort of geographic barrier.