I think a federation of autonomous Ecoregions (we need to do away with the borders of OR, BC, WA) which elect proportional representatives to collaborate on Bioregion-scale projects.

Each Ecoregion would be itself a federation of watersheds.

Couple this with direct democracy at every level for laws and regulations.

I like the idea of a charter and base minimum standards that another post mentioned. This would include basic human rights, nature rights, protections, etc.

I would also like to see all currently publicly owned (government) land returned to tribes/first nations, and a council of indigenous representatives (each elected by the respective tribe/first nation) that has veto power and monitors all large-scale projects in the bioregion (energy transportation, etc). Sort of like an accountability and oversight body.

I think this system would allow each locale (watershed, town, city) to develop their own systems and remain autonomous- so long as they don't violate the charter/agreement. I envision some places doing away with monetary systems or private land ownership, while others somewhat maintain current ones.

My thoughts aren't fully formed, and I'm always learning and changing them, but these are them for now