A burg is a type of municipal subdivision used in Twofold, especially in Siltwater. Siltawter is divided into four Burgs. A subburg is a subdivision of a burg. A burger is an individual from a particular burg. It is also a type of sandwich.
Twain is a burg that encompasses the central island of the Siltwater Delta, which itself has been reduced to two large outflows on either side of the island. It is the home to Uptown, Midtown, and Downtown, the Silver Spire, and its predecessor, the Old Temple. It is enormously densely populated, and is highly heterogenous owing to its long-term significance and economic appeal.
Knox is the burg that encompasses everything to the south of Siltwater River. It is a medium-high density Burg, dominated by five-story twentieth-century Siltblock apartment buildings. Its largest and most populous suburg is Southbank, which contains several famous shopping centres, and large avenues famously flanked by tall buildings that are near-totally eclipsed by advertisements hanging from their sides.
Bishops is the northerly burg of Siltwater, and technically begins halfway through the breadth of the northern and primary branches of the Siltwater River. Its most familiar region is its southwestern coastal corner: wealthy, older families who made their money in the Big Time moved their assets and relatives to Bishop, where they live in seaside mansions and drive expensive cars. North of this is endless Suburgia, smeared thinner and thinner towards the Gidrakonian mountains until they are tiny towns straddling a vast, horizon-to-horizon grid of motorways rising up the steppe.
Landings is the far-southerly burg of Siltwater, beyond Knox. It is dominated by corporate microagricultural greenhouses, which glow fluorescent white even in daylight, and broad highways and heavy industrial railways. Landings technically extends to the poor and mountainous regions further south of this, but few city-dwellers ever venture there. Nonetheless, it is these 'southlanders' that make up the primary workforce of Siltwater's rail and agriculture business.
Alotter or Olotl is the far-eastern burg of Siltwater, dominated by suburgan duplexes, and a large number of modestly sized urban centers, forming what look like distant and isolated mountains looming over a sea of small apartment blocks. It is deceptively large and populous, and is by far where most Siltsiders live. It is full of middle class families who drink and watch sports, and have a very low opinion of Twain financiers. Every year, there is 'heatstroke epidemic' due to urban heat islands and climate change.