I believe these are called Craters.
hope this helps!
If your asking how far the Seminole Indians walked that would be over 400 miles
Answer:
The Great Depression was the worst economic downturn in the history of the industrialized world, lasting from the stock market crash of 1929 to 1939.
Japan agreed to Commodore Perry's trade treaty because of the military threat. Japan was well aware that they were faced by an adversary who had a stronger military than Japan and so they had to bow down to the wishes of Commodore Perry. It did not matter whether Japan liked it or not, they had no other alternative.
Plateau because of the fresh water I think