No Canadian Confederation

This is an alternate history for if Canadian confederation had not happened.

Instead of the four colonies of Nova Scotia, New Brunswick, Canada East and Canada West forming the four original provinces as in OTL, the Maritime provinces (Nova Scotia, New Brunswick, and Prince Edward Island) would have formed a Maritime Union, which later would have become the United Atlantic Coast including Newfoundland and a few of the US New England states. Meanwhile, the Canadas would have formed a slightly smaller, weaker Dominion of Canada including parts of the OTL provinces of Ontario, Quebec, Manitoba, and Nunavut. Western BNA would have been partly annexed by the United States, part of the land would have remained in British control, and the Westernmost part (OTL British Columbia, Northwest Territories, Yukon) would have become the independent North Western Territory.