Depending on the definition of 'Eastern US' and 'Western US', these two regions of the country may not meet at all, with a center region between them called the 'Old Northwest'. Most people hold that the Mississippi River is where the Eastern US ends, and to the west of it is either the Western US or the Old Northwest.
east
The Mississippi River separates the west from the east in the United States of America.
It would be east, but more specifically east northeast of the United States.
The Pacific Ocean lies east of Japan and west of the United States.
West to east
It is in southern California on the West coast of the United States.
The long river that is the border between the east and West United States is the Mississippi River. The Mississippi is the longest river in the United States.
The United States is about 2,680 miles wide from east to west.
East: Atlantic West: Pacific
Pacific on the West, Atlantic on the East.
South, North, East or West of what? Hawaii is located west of the main part of the United States. it is East of Japan.
The Atlantic Ocean is on the east side of the United States. The Pacific is on the west side.