Explain what Schwantes book means by the term \”hinterland\” when talking about the history of the Pacific Northwest

Be sure to use information and examples from the attached file:
1. PNW as Hinterland. Explain what Schwantes book means by the term \”hinterland\” when talking about the history of the Pacific Northwest. What parts of the history of the region support that argument? For example, what economic aspects support that definition? Finally, in what ways does the region today not quite fit the center/hinterland model?