we just went to that area yesterday!! its very rocky and lots of cliffs on the coast, and super super hilly and forested in the interior.
many absolutely do live there, and those municipalities marked on your map there are reasonably populated. but the terrain is not super great for building large stuff, and they really do not like deforestation either. it is also farther away from freeway I-5, where most stuff on the west coast is freighted by truck, and is more expensive, at least from our experiences.
the sunset on the coast is SO pretty though :)
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