Questions tagged [geography]

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

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3answers
95 views

Ideal Settlement Location for Time Travelers [closed]

If a group of time travelers dedicated to travel back 10 million years and settle a humanless earth, where might they decide to found this first colony? Assume that these temporal colonists are well ...
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2answers
116 views

Permantly Fog-Filled Canyon

I have a canyon, with similar size and shape to the Grand Canyon. The canyon is carved by a large river, similar to the Colorado river. I want this canyon to be filled with fog so thick that, if you ...
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1answer
122 views

How is my biomes map?

For a while I've been making a realistic planet that is quite similar to Earth. I've finished the tectonic plates, ocean currents, wind patterns, and a rough height map. Next up is the biome map, ...
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11answers
3k views

In a supercontinent would ships still be the primary way of transportation before the invention of engines?

introduction My world is made of a super-continent with very little isles, it has 100 countries, 97 of which are on land. 3 of those are underwater for folk who are able to live confortably in the ...
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1answer
79 views

Can a desert and semi-desert be right beside each other geographically?

One of the countries in my novel is Semi-Arid, but I want it to become more like a hot and dry desert the farther West one travels (like the Sahara). Is this possible? PS. There are mountains to the ...
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4answers
96 views

Would mountains on the coast of a small island continent still have a rain shadow?

Consider a continent (or...big island?) the size of the UK. Along one coast there are mountains about 3km high, going inland about 50km. The rest of the continent has no mountains. Would there be a ...
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1answer
79 views

What exactly are the requirements for the formation of a rainforest?

I am wondering exactly what features and properties are required for an area for a rainforest to be able to believably develop. So can people here please inform me of the known requirements, with ...
4
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2answers
142 views

Mountain ranges and tectonic plates -- how can I make my world map more plausible?

This is the first world map I’ve ever made. I tried a smaller one a while ago, but now I’m attempting a map of a full planet. As always, this world is Earth-like, etc. I also have yet to finish it, ...
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3answers
807 views

How could I have a mountain range that completely bisects my land mass?

I want to have a mountain range in my continent that splits it into two parts, such that it is incredibly difficult for them to communicate. How could I pull this off in a plausible way without having ...
5
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1answer
140 views

What would Inversia's climate map look like?

Inversia is a world conjured up by Chris Wayan that expands on the old "inverted Earth" trope. The instructions he made were as followed in this link: Mark the sea level carefully. Remove ...
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4answers
214 views

I need feedback on the geographical plausibility of my map

This is my first ever map. I’m not sure how plausible it is, and I’d appreciate any feedback or advice on how to make it more plausible. I haven’t put names or anything on it yet because I want to be ...
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1answer
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where did all the heavy water in our oceans come from? [closed]

there is 1 heavy water molecule in 7000 light water molecules in the ocean. my question is where did all that heavy water come from? did it form in the earth or is it of cosmic origin?
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10answers
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What Could Explain A Solitary Mountain in a Grassland?

That title is probably way too specific, but essentially I'm trying to develop my book's setting. Currently, my characters (a team of six adventurers) awaken as amnesiacs who were once human but now ...
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3answers
1k views

How could my island-country mostly populated by massive humanoids subsist its inhabitants?

In my prospective dramedy science-fantasy children's videogame Salade de Fruits (which means naturally Fruit Salad), there is an island-country comprising a total of eight islands: The smallest has ...
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4answers
233 views

Can a pangea like continent have diverse life and climates?

In my story, a group of scientific explorers go on a expedition to a planet, and I don't know if it should be a super continent because of the diverse life there could be. There are deserts, forest, ...
3
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4answers
158 views

How to create an immobile continent?

For my fantasy world, there is an artificially created continent (created by magic, but an important note is that the continent itself is ENTIRELY non-magical.) The continent is nearly 20,000 years ...
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11answers
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How do I explain a big flooding event that happened while still having a cold planet?

On the planet I’m making, there was a big flood that happened and raised the sea level by 30 meters. I want the planet to have a cold climate, so I can’t simply explain the flood by saying it was ...
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4answers
816 views

How do I work backwards from a political map to writing out my world's geographic history?

Background: this universe has the same physics as our universe. The planet is the same as Earth. I've drawn out the map of a singular continent and it has all the political modern day boundaries ...
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1answer
68 views

Irrigation in ancient societies [duplicate]

In what kinds of environments would the irrigation of crops require authoritarian governments ? This would be about ancient pre industrial societies.
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4answers
1k views

In the event of a strategic nuclear war that somehow only hits Eurasia and Africa, would the Americas collapse economically or socially? [closed]

Let's say that there's a strategic nuclear war in Europe, Asia, and Africa - only - and does not involve nuclear weapons hitting Australia, the Americas, the Pacific islands, etc. What would the ...
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5answers
2k views

Naming Continents [closed]

I'm creating continents for my fantasy world but I need help creating names. I still haven't decided how many continents there will be, but I'm already having trouble coming up with names. Does ...
6
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2answers
140 views

Consequences of a Super-Light Super-Earth?

In this scenario, there is a rocky planet that is 230% the width of our Earth, covering a total area of a billion square miles, 55% of which consists of three continents separated by a single ocean ...
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2answers
128 views

What could cause the land masses of earth to move freely around?

In the story I'm making that takes place on an alternate reality of earth in the 1300s, there is an all powerful being that makes all humans immortal. later on he gets angry that not everybody is ...
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2answers
98 views

Would floating messages down a river be an effective means of mail?

Suppose there was a country with a mountain or mountain range that is the source of a few major rivers. Would floating messages down the rivers (to settlements or post offices on the river) be an ...
6
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3answers
170 views

Can a continent be completely desert?

I want my continent to be at least 90% desert. It has a square shape with several peninsulas. Kinda like Australia, but more than 3 times bigger and it's not flat(well it does have flat areas, but not ...
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1answer
74 views

What material could be found (Mining) on this planet? What could I do to have more important materials on this planet?

The planet is Earth-like with gravity: 1.05 Earth's, an Atmosphere of N2: 94% / H2O: 1% / CO2: 1% / Ar: 3% / 1% Other gases with 1 atm pressure at sea level, 40% of the land is H2O water, there is ...
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2answers
135 views

How habitable and different would an habitable stagnant-lid (no tectonics) world be?

Recently I was informed of the possibility of having an habitable world lacking tectonic plates, specifically of something called heat-pipe tectonics. Which is essentially the same tectonic system ...
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3answers
1k views

How smooth would Earth's oceans be if quickly frozen?

I am writing a story in which the average temperature of Earth falls by 150C (270F) over the course of five months. That should be cold enough that, according to a source from Kurzgesagt, the ice caps ...
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3answers
1k views

Is there any way humans could influence whether/when a magnetic pole flip happens?

Are there any actions that humans do that could influence whether a magnetic flip (I believe the proper name is geomagnetic reversal) happens? Are there any ways humans could theoretically influence ...
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1answer
179 views

Islands of land locked by mountains

So, for this story I'm drafting, I want to use this type of landscape for the main region where the plot develops. Basically, instead of a sea of water proper, the islands are low valleys amidst steep ...
2
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1answer
113 views

What are some non-military reasons for a country wanting to control an impact crater where the Strait of Gibraltar used to be?

Let's say that there's a 2-million-year-old impact crater where the Strait of Gibraltar used to be, and that there's an impact peak or a series of impact peaks in the middle that are far enough above ...
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0answers
50 views

Would a gigantic meteor impact in the Strait of Gibraltar create a peak-ring crater, or at least a complex one?

Background: A peak-ring crater is a sub-type of complex crater (an impact crater in which the impact wave rebounded from the rim of the crater and pushed up a mountain in the middle) where, instead ...
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0answers
72 views

Would a meteor blowing up the Strait of Gibraltar 2 million years ago kill all of humanity's ancestor species?

Let's say that, 2 million years prior to the present day, a meteor impacts roughly in the middle of the Strait of Gibraltar. It is large enough and strikes at sufficient velocity to create an impact ...
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3answers
188 views

Are there any tools that people use to generate borders during alternate histories?

I personally think that this question is only slightly more suited for Worldbuilding Main rather than the Worldbuilding Meta, but I'm not sure where else to ask. Is there a website that I could use ...
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3answers
134 views

What yield of nuclear explosive would need to be detonated in Valencia, Spain, to flood the Balearic Islands?

A nuclear device goes off on the beach in Valencia, Spain - immediately adjacent to the ocean. How large will this device need to be in order to flood a majority of the human settlements in the ...
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12answers
6k views

The erosion problem on floating islands

Even the tallest mountains will be ground to dust with time. Given, of course, nothing sustains them (like tectonic activity which prevents mount Everest from eroding away too quickly, even making it ...
3
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3answers
256 views

Any advice on what is a realistic way to use plate tectonics to create landmasses and barriers?

Recently I've taken it upon myself to create a brand new fantasy world. I created fantasy settings in the past but this is the first one with such a strong emphasis on realism and staying true to our ...
2
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0answers
56 views

How different, geographically, would Western North America look if the ice ages lasted 14 million years rather than two-and-a-half?

If such iconic landscapes as the Great Lakes, the Mississippi Basin and New York Harbor are proof of anything, it's that the North America we know has been shaped by ice ages coming and going and ...
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2answers
584 views

I have a question about details for a floating continent in an alternative earth

How much shadow would a floating continent the size of Australia cast if the bottom most point of the continent rested at about a mile above Mount Everest’s peak? EDIT 07/12/2021 I’m still trying to ...
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2answers
1k views

How to create a rainforest and desert in proximity to each other such that the desert can be hottest or coldest possible on an Earth-like planet

I have created a tall mountain range and am creating a forest on one side and desert on another. Can this forest be a rainforest? If so, are there any examples on Earth where rainforests and deserts ...
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11answers
2k views

Reasons to settle outside cities on deserts

I need help solving some problems considering civilization living on plains The World: there is magic, everyone can perform it, it needs a lot of studying to perform - users need special type of ...
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5answers
401 views

What kind of rock could I use in my mountains?

in my world there is a mountain system where most of the rock is some kind of material or mineral that conducts heat very well. So much so that there is no snow on the peaks as it melts quite quickly ...
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4answers
1k views

Why there is white ash everywhere?

In my world a war happened between a few tribal leaders a really long time ago. Those leaders had nearly god-like magical powers, giving them the ability to modify bodies, matter (like earth, stone, ...
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3answers
188 views

Best real-world location for a self-sufficient villain island?

Villains like to live on private islands, where they have a secret base and can carry out their evil experiments in all privacy. The Caribbean is popular in fiction, but for my purposes it is just ...
3
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4answers
431 views

Do rivers pass through a mountain range?

So I have just begun with world-building, and this is my first map. As you can see on the map, a small range of mountains splits from the main mountains. What I wish to have is a long river that goes ...
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10answers
933 views

How can I justify that dunes keep drifting and cannot be stabilised?

I have the idea of a fantasy civilization based around shifting dunes. The idea is that the land is largely uninhabitable except for the coasts, but there are large dunes that function as habitable &...
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7answers
3k views

What would a bear species isolated on an island look like?

In a science-fiction story that I am writing, there is a species of bears that only live in a specific oceanic island. They are the descendants of American black bears (Ursus americanus). They are my ...
2
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2answers
287 views

What makes for a good/bad port city?

What are the factors that would determine whether a city on the coast will become a bustling metropolis or whether it will always remain a modest fisher's village?
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1answer
105 views

World with only shallow waters?

Is a planet the size of earth minimum, probably even larger, plausible if it has no water depth below 70 meters?
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5answers
1k views

Is a lake formed and surrounded by mountains, foothills and plateaux possible?

Upon a given landmass I drew a lake, and surrounded it with small ranges of mountains and plateaux, so making it an enormous endorheic basin. The drainage from the highlands would collect upon this ...

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