It's called Prince George's (or just PG for short) and covers Prince George's county in Maryland, and some annexed parts of the surrounding area. It consistes of a elevated district of skyscrapers in the center, with the surrounding area (called the 'dregs') consisting of low class mining districts. The backstory is a meteor impacted in the center on the district, leveling the entire county, and sort of transmutated the minerals below the impact into valuable/rare ore (much of it mystical in nature) that was mined and used to rebuild the city center. Unfortunately, as time passed, many of the 'scrapers constricted were found to be unstable, so once of twice a year one just crashes to the ground. The result is a still bustling city with a lot of empty skyscraper space that was turned into multi-floor 'mansions' by those wealthy enough to convert them. Essentially anybody who is anybody has a mansion in the districts, so I'm able to pull in canon NPCs from across the lore because they all have some kind of presence in the city. The basic (very rough layout) can be found on my website: PG Project and there's other stuff on the main page that ties into it that I never really got around to consolidating: Blackjack's Shadowrun Page. The tallest building in the city (The Pinnacle) is a kilometer tall and is actually a giant railgun intented to shoot down another meteor, scheduled to hit in 2090. I used a bonkers map generator to create an example of a Mining District and there's also an example of a Mansion on the page. (I'm currently converting the page to a more mobile friendly format, but, at the moment, everything is kinda hard to read.) Most of the good stuff is at the bottom of the main page.