Explanation:
Mount St. Helens is an active stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States. It is 50 miles northeast of Portland, Oregon and 96 miles south of Seattle, Washington
Great plains is known for the mountains
The trade route to Byzantium is what led to all the others.
Hope this helps :)
~Davinia.
The locations of the interment camps were strategically placed around the country. They were placed on the outskirts of the cities or in the less populated areas. These areas were chosen because it was easier for the government to set up security and the chances of attack or sabotage were lower than if the chose to do it in a more urban environments.
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