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Questions tagged [geography]

For questions about the characteristics and effects of natural features on a world.

7
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6answers
758 views

How would a half-steppeland, half-desert kingdom with only a single river function?

On one of the continents in one of my fantasy worlds, I have a kingdom. The kingdom is comprised of two different geographical regions, a steppeland area in the kingdom's north and a desert region in ...
8
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3answers
175 views

Plant and Animal Life in a Taller Tibet--Possible or Not?

Back home, the Tibetan Plateau averages 4,950 meters above sea level with its highest point being Mount Everest, 8,848 meters--29,029 feet--above sea level. At such heights, problems are resulted as ...
9
votes
7answers
663 views

In a world where two enormous cities are built one on top of the other, what would weather be like in between?

Aliens build their city on Earth in such a way that it covers the entire planet but leaves the surface of the planet (including human cities) intact. This is possible since they built their alien ...
5
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2answers
201 views

How long would it take for cooperating insects to transport a grape-sized rock from Finland to South Africa, in an efficient way?

The rock is spherical. All arthropods are included. They have no time limit and are "programmed" to cooperate, but lack intelligence. While there is no time limit, the insects do this transportation ...
4
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3answers
283 views

Geography of a Super Venus

It's common knowledge that the atmosphere of Venus is too inhospitable for a proper landing. The most concerning problem with that is pressure. Venus's atmospheric pressure is said to be 92 times ...
7
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3answers
661 views

Underground Terrain Types / Biomes / Agriculture

I'm creating a fantasy-world generator. So far I've got it generating a reasonably good surface map, complete with terrain, cities, and borders. Here's a link for anybody who wants to try it: https://...
50
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21answers
13k views

What natural phenomena could make an island unreachable?

If an island in a sub-tropical region were to be unreachable because of natural phenomena, what could those phenomena be? The people trying to reach said island have 17th century seafaring ...
-3
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1answer
68 views

Undercover agency hideout [closed]

In my world half the population is dead, the rest enslaved after the uprising of a nefarious rebel faction. Most of the world's armies have succumbed to defeat. However, a group of former intelligence ...
60
votes
28answers
13k views

Could extreme climate zones exist next to each other?

I would love to shape my planet in a way, that allows me to have an extremely cold, icy desert, next to an extremely hot, sanddesert. By "next to", I don't mean a few hundred miles apart, with ...
2
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3answers
405 views

How would a port city located on a river on the border defend itself?

This is my first question on this site! So, I have been trying to figure this out. I have a port city that is located at the mouth of a river. The problem is that the river forms part of the border ...
36
votes
16answers
6k views

A realistic option for enclosing a geographic area

So in many games you have regions that are bordered on all sides by impassible geography of some sort or another. This has always bothered me as necessary but also acts as a reminder to pull you out ...
3
votes
1answer
509 views

What would be the consequences of a world of floating/flying islands? [closed]

I have a medieval fantasy world made up of an earth-like planet over which "islands float in the sky", a few kilometers high. These islands are fixed above the planet and fixed between each other. The ...
6
votes
4answers
543 views

How can I explain rainforests in a world with little, localized rain?

On the world I am building (Let's call it Bob for simplicity's sake), the days last 9 years. As a result of this, the living beings on Bob must migrate across the planet to avoid the encroaching night....
1
vote
2answers
312 views

Where would be the most suitable place to build a capital for Earth-clone planet for modern society? [closed]

Assumptions, main: literally Earth like planet, looks just like modern Earth, just without humans, without pollution, without depleted natural resources, even megafauna is left. Just in this timeline ...
2
votes
2answers
202 views

Potential ecology of a magic hot spring?

My fantasy world has an ecology hole. The northern areas are, on average, -5 degrees Celsius. Gravity is 90% that of Earth. Residual magic from tectonic phenomena is released as heat into the Earth. ...
9
votes
4answers
773 views

Cauldron of Storms: Geography to create and isolate localized mega-storms

Welcome to the Black Cauldron. The Cauldron of Storms, even. It's a sunny day now, perfect for fishing. Just not here. There's no boats on the water. The weather can go bad, quickly. And anything on ...
23
votes
11answers
5k views

Building a city on top of, alongside and inside a coastal cliff

The capital of the society my story revolves around is built on top of a cliff, similar to the White Cliffs of Dover (pictured below for reference). For story reasons, they settled in this location ...
0
votes
1answer
416 views

What if half the Earth was covered in lava? [closed]

Imagine that some kind of catastrophic event takes place on Earth, like a gigantic eruption, and half the planet ends up transformed into a hell-like hemisphere, with volcanoes and seas of lava (like ...
5
votes
3answers
264 views

How could a mountain range naturally form in a roughly clean, complete shape?

In this universe, the planet Paveiha has a mountain range that completely surrounds a region in a semi square/rectangle(ish) shape. Inside the borders of this vast mountain range is a verdant land ...
28
votes
17answers
7k views

What could be a valid reason for an entire section of a continent to remain unexplored and undiscovered, by the rest of the world in medieval times?

How can a part of a continent (super or other) remain unexplored by the apparently civilized majority? The undiscovered part must be habitable but inaccessible, by land or sea, so that the rest of the ...
8
votes
2answers
2k views

Tips for Improving a Fictional Map's Coastlines

So I've created a map of a fictional world using the guidelines established in the Creating a Realistic World Series. However, like all creative endeavors, the first few (hundred) maps are not going ...
22
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18answers
7k views

What would be a reason that two superpowers at war would not claim a perfectly good island?

I'm writing a story that involves two superpowers at war. The main character has made a base on a large, unoccupied island that is easily accessible by both superpowers. Would there be a good reason ...
105
votes
11answers
26k views

In a medieval setting, how far apart should towns be?

This is a medieval European (fantasy) setting, with the following (highly tentative) parameters: Each town is vaguely autonomous, and have their own municipal government system. Towns do trade with ...
8
votes
1answer
120 views

The Geography and Ecology of a Supervolcanic Planet

What would be the geographical and ecological implications for an Earth-like planet that experienced intense volcanic and supervolcanic activity on a scale that, while decreasing over time, was far ...
5
votes
1answer
191 views

What would weather/geographical conditions be like on a tidally locked moon?

I'm trying to figure out what weather patterns and geographical conditions would exist on a habitable moon that is tidally locked to a much larger planet/gas giant. From my research, I was able to ...
27
votes
7answers
4k views

What natural protections could a small oceanic island have against tsunamis?

In what ways could an island be protected from tsunamis, given the following constraints?: It lies in the middle of the ocean, at least several hundred kilometers from the nearest continent. It does ...
2
votes
1answer
156 views

Rules for Geological Structures [closed]

I'm trying to create a Random World Generator. To create this, I need to be able to generate geological structures like mountains, volcanoes, etc. What rules (i.e.: min 200 miles between 2 islands) ...
7
votes
3answers
240 views

Geography and Appearance of an nitrogen/ammonia planet

The planet in question is this one. Approximately three quarters the size and half the gravity of Earth, an atmosphere 25% as dense as the Terran one which mainly consists of Nitrogen with small ...
-2
votes
2answers
560 views

A Younger Siberian Traps [closed]

Back home, the catalyst for the worst biotic catastrophe in the world, the Siberian Traps, don't have much left. 252 million years of erosion was more than enough to reduce the igneous province from ...
5
votes
5answers
159 views

Erosion of buildings on geological timescales

I'm looking at a science fiction scenario similar to Lovecraft's At the Mountains of Madness where buildings are exposed to the elements for millions of years. I have a feeling they wouldn't be quite ...
0
votes
2answers
3k views

What would happen if all the pollution in the world just disappeared? As well other stuff? [closed]

Let's say that somehow someway, all the pollution in the world just disappeared, along with the trash, oil and random junk that filled the ocean, as well as the all the sludge that filled fresh water ...
26
votes
12answers
18k views

Is it possible for an ocean to have a river flowing from it into a lake?

I am designing the geography of a lake in which two rivers flow. Should it have a river flowing from it to the sea or vice versa?
3
votes
3answers
264 views

Could all of a planet's surface be wetlands?

Is it possible for a planet's surface to be wetlands, such that… There are no great land masses (continents). There would still be two polar caps, and I am considering a greater width of ...
47
votes
19answers
9k views

(How) can I provide reliable water sources in a world of flying islands?

I have humans who live in a world filled with floating islands. These islands span all heights in the planet: from the core to the upper atmosphere. The problem I have is that most of these islands ...
5
votes
2answers
328 views

How small can a landmass be before insular dwarfism kicks in?

I am currently working with a landmass roughly 1,000 miles (1600 km) in length and width. Would insular dwarfism or gigantism occur in this landmass? If not what is the largest a landmass can be ...
1
vote
1answer
163 views

Hollow Earth, or mile deep network of caves/tunnels [closed]

Is the hollow Earth theory based on a sub-surface network of tunnels that link large caverns, or do they really believe there is a interior sun that lights a hollow core. This seems to have many ...
63
votes
16answers
6k views

Ultimate Australian Canal

First of all, yes I'm Australian, and yes I am using a kangaroo to type this up. If you take a look at Australia, it's a pretty sad place geographically. Very flat, very dry, mostly desert and for ...
6
votes
8answers
308 views

Industrious uses for a perpetually strong-flowing magically circular river

So in my fantasy world I have a river that is in the shape of a perfect circle if viewed from above. Lets say the diameter of the interior is about 10 km, and the width would be wide at about 200 ...
16
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2answers
388 views

What would be the immediate climatic effects of having a continent appear out of nowhere?

I am writing a story where a freak magical accident causes a fully-formed landmass to pop into existence like it was there all along. For the purposes of this question, let's assume: the continent ...
-3
votes
2answers
527 views

World without the land-based silk route [closed]

The silk route was one of the most important trade routes of the ancient world. Used mostly by merchants to expand their fortunes the silk route was an important part of not only trade but even ...
8
votes
3answers
219 views

How to fracture a continent

Let's say there is planet, similar to Earth in almost all respects. However, some sort of geological process has shattered its continents, leaving lots of islands no larger than Iceland with shallow ...
5
votes
4answers
259 views

Could this work? How to? Terraformed gas-giant

I have an idea for a scify/lost technology world, that I would like to check the plausibility of. What I want A terran world of large size. The crust of the world is thin, and hostile gas-organisms ...
1
vote
0answers
188 views

The Arctic Plate [closed]

In this alternate Earth, each ocean has its own plate, and the Arctic is no exception. Horizontally cutting Iceland in half, we can find the border three to seven miles off the coasts of Labrador, ...
8
votes
4answers
221 views

How would a hollow, layered lattice planet work?

I had the idea to make an artificially constructed planet which is terrestrial, but has the diameter of Jupiter. Instead of being a solid sphere, it would be five spherical layers, with land on the ...
11
votes
3answers
704 views

Natural subterranean cave formations on Mars

Is it possible that subterranean caves do/have existed on Mars? We know of the past existence of water on Mars. Which region (if any) of Mars would we likely find/expect to find a cave system below ...
4
votes
4answers
272 views

How I figure Earth's state in a distant, but not absurdly distant future?

For example, if I want to make a setting that is in year 3000, or 4000 (instead of 100.000 or other absurd numbers like that), How do I go about figuring how Earth will look then? That is, assuming ...
2
votes
2answers
144 views

Redressing the Geologic Face of Japan [closed]

Back home, the islands of Japan are created by the subduction of three separate plates--Eurasian, Philippine and Pacific. The result--Japan being the hottest spot for both earthquakes and active ...
5
votes
1answer
911 views

What geographic features occur at each type of tectonic plate boundary?

I made a map of the tectonic plates for my planet and then assigned each of them a direction. So as the question title says, what geographic features occur at each type of plate boundary? Also to my ...
8
votes
4answers
216 views

Can there be a planet for which orbit and precession take the same time?

Is there a necessary relation between orbital period and the time of precession? In the case of Earth, the orbital period is one year, while a complete precession cycle takes thousands of years. Is a ...
7
votes
2answers
606 views

can the same river be deep and fordable

Is it reasonable for a river to be shallow enough to ford in one location, while nearby (say within 5 miles or less), be at least 12 feet (3.6m) deep? The same river can have shallow sections and ...