As a New Yorker interested in the PNW, this should be on your list:
https://www.amazon.com/Astoria-Jeffersons-Pacific-Ambition-Survival/dp/0062218298
It's about John Jacob Astor founding a colony (in what is now Oregon) to establish an American footprint in the PNW.
The entire endeavor was a dumpster fire,
was it this book? https://www.amazon.com/Astoria-Jeffersons-Pacific-Ambition-Survival/dp/0062218298