Here's a map based on Robert Charles Wilson's Julian Comstock: A Story of 22nd Century America
as it would have looked like at the beginning and early parts of the novel. Needless to say, it's a strange Steampunk future.
As an interesting sidenote, it seems that there haven't been any maps made based on this story. So with a slight disclaimer, maybe this could be the first, though I could be wrong.
For those interested in looking it up, here's some info: [link]
It has been over a century since the Efflorescence of Oil. The chaos that characterized the Fall of Cities and the False Tribulation, among many catastrophes, are now long past. Gone too are the days of the astonishing technology the so-called “Secular Ancients” prized so much, giving way to a new Age of Steam and Industry.
The United States of America rules triumphant, its 60 Stars-and-Stripes covering much of the continent under the firm reign of President Deklan Comstock, his most recent accomplishment being the conquest of Panama from Brazil. But the Americans of this age are another animal from their “Secular Ancient” counterparts. Through emergency measures, the Pious Presidents and a religious body known as the Dominion of Jesus Christ on Earth (covering most branches of American Christianity), the Union was preserved, but at a shocking cost. Society has been redrawn into an “imperfect” reimagining of 19th Century Americana. The population at large is placed into rigid neo-feudal Estates (including a thinly-veiled form of indentured slavery), while in the cities a re-emerging urban worker class is beginning to threaten the order. Modern democracy is given lip service as a Eupatridian (i.e. “Aristo”) Senate elects incumbents into the (more often than not hereditary) Presidency. All the while the Dominion controls all matters of religion and morality, where association to Dominion-sanctioned Churches is “freedom of worship,” whereas Jews, atheists and “heretical” groups (Christian or otherwise) are either discriminated or outright suppressed; anything directly pertaining to the "Secular Ancients" themselves goes without saying.
Most Americans, however, are more focused on the persistent thorn on their doorstep. To the northeast, the allied nations of Mitteleuropa,
a German-dominated league formed from what remained of the European Union, threatens American interests and sovereignty. While the Dominion tries to paint the war as a crusade against the godless European foreigners, in reality it has been fought over control of the territories around the now-prized Northeast Passage, as well as a continuation of the age-old quest for Manifest Destiny. After generations of on-off conflict, Labrador and Newfoundland (the latter only recently “liberated” by the Americans) have long become colonies of the Dutch, climate change having turned them into soldiers and displaced nomads in the service of the alliance. And despite efforts by Deklan’s Army of the Laurentians, the Dutch enemies remain steadfast in keeping their lands, even managing to reach within sight of Montreal.
It is into this backdrop that one Julian Comstock, son of the President’s (assassinated) brother, is about to leave his mark in US history. And with his ambitions and rather “peculiar” idea, possibly bring America back to its true
glory...that is, if Deklan and the Dominion don’t get to him first.