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Questions tagged [geography]

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

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How would the terrain of a snow-covered mountain deter a mechanized army?

My story is set in a fortress town built below a mountain, and revolves around the struggle between the witch who protects the mountain and the tyrant who seeks to plunder it for resources (think ...
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3answers
899 views

Complications of displaced core material?

If there were an absolutely terrible accident, and part of Earth's core was displaced toward the surface, making a bubble of liquid nickel and iron, what would be the major problems with this?
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Can tectonic plates have any shape and size or are there limitations?

I would like to create a map with the help of tectonic plates. I didn't really care before. Can tectonic plates have all possible sizes and shapes? As an extreme example, could a continent the size of ...
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4answers
159 views

How significantly would the course of rivers change over 10,000 years?

This one is rather straightforward. A character falls into a magically-induced coma for about 10,000 years and then wakes up to find the world around him different in quite a few ways. There's not a ...
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5answers
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How might a landlocked lake become a complete ecosystem?

Let's assume that there is a lake that has formed from snowmelt and rainfall. The lake has never been in contact with other bodies of water. How might this lake become a complete ecosystem?
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3answers
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Are these climate zones somewhat realistic?

I have been slowly losing my mind trying to build a somewhat realistic climate map for a fantasy world I'm building for my book. A geographer I am not... I modeled the climate zones and such after ...
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4answers
376 views

No oceans but not deserts?

I'm picturing a world without oceans. I'm not after Arrakis; I want a quite lush surface. I'd like no surface water at all, but I'm concerned that makes evolution impossible. (I imagined using ...
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4answers
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What would a planet spinning fast enough to allow geostationary orbit near the surface look like?

From an answer to a previous question of mine: A planet spinning fast enough to allow geostationary orbit near the surface would result in odd side effects. Any object at rest on the equator would ...
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2answers
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How would a race develop specific adaptations in an area with hard, rocky soil and sturdy trees? [closed]

In my world, one of the races is from a part of a continent with dense, rocky soil and large, hardwood trees. Their whole culture is structured around establishing sturdy foundations and permanence ...
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2answers
224 views

Drawing landmasses for this odd-shaped planet

I've just come here for some help drawing a map for this fictional planet where two roughly similar planets have been smushed into kind of pear shape like this: So this planet spins on an axis which ...
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2answers
821 views

What are the requirements for a river delta to form?

I know that when some rivers (such as the Nile) flow out to sea, they break up into several smaller channels. But I was wondering about the necessary features of the land and water for it to occur.
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How might a mountain bowl form?

On a world similar to Earth minus size, gravity, and a mildly different atmosphere. The weather is much more violent, causing frequent dust storms. The planet is larger than Earth and is mostly ...
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4answers
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Is this a realistic set of world maps?

I want to start by thanking everybody in this community as your posts have been instrumental in helping me to build my world. All I am asking for is a final review of the maps that I have created thus ...
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2answers
279 views

How much land disappearing would it take to drop the sea level by 10 meters (30ft)?

THINK ATLANTIS There's an island. Maybe it is a continent, maybe not. I am not sure and that is why I need your help. If the size of my world is equal to Earth's, what landmass size would it take ...
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12answers
2k views

Rivers without rain

On Earth, rivers are possible because rain and snow deposit water in high places. That water then forms rivers when flowing to lower places. Would it be possible to have the phenomena of rivers ...
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5answers
2k views

What could prevent concentrated local exploration?

In my world there is a village with a hot spring, the only one on the entire island. The spring emerges from a local cave which has been filled / caved in by a past civilisation, since the water is ...
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3answers
200 views

Medieval/ancient/fantasy setting in southern hemisphere?

I was unfortunate enough to imagine an ancient setting upside down. I started out with small features and, after connecting them, got the following: ...
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1answer
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Can rocky hills similar to the Scottish highlands be located next to a bog?

I've written about these rocky hills with short grass, gravel, shrubs, and big boulders. At the bottom of one of the hills is a big bog. Basically I've designed some buildings to be sticking out of ...
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4answers
314 views

Is is plausible for an Earth-like planet to have all of its land located in one polar hemisphere?

I made a map for my fictional world and it would be convenient for the story to have all of it affected by a somewhat similar climate. The map is made of several pieces of a Pangaea-like continent ...
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3answers
605 views

Bridge over Lake Baikal

Note: this takes place in a world populated by humanoid bears, where the population density in Siberia is much higher. The northern part of Russia is taken up by a country called Medwedia. As said ...
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3answers
221 views

Giant rock spikes sticking out of the ground

Would it be possible for huge, hundreds-of-metres-long spikes of rock, ideally slanting at an angle, to arise under natural processes? For clarity, I mean like this: Copyright Joe Jesus There are ...
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4answers
510 views

Can one humanoid species evolve to live at an altitude where another, similar species could not survive?

It seems that people who live at very high altitudes have demonstrably "thicker" blood, highly concentrated with red blood cells to overcome the low concentration of oxygen in the air. Moving between ...
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1answer
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Could the shape or geography of the continents be dramatically changed in a roughly short span of time? [duplicate]

I’m aware that the continents and the tectonic plates they reside on drift, but for there to be any noticeable change in their shape or geography takes millions of years to occur. Is there a known way ...
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2answers
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Realistic placements of Mountains and the like

This question basically boils down to this: What would be the places on a given continent where one would find mountains? I have seen maps from games, movies, board games, books etc. where it would ...
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2answers
173 views

Will winds always be the same?

Around Earth's equator, there's a band of low pressure called the Doldrums. 30 degrees north and south are bands of high pressure called the horse latitudes. Finally, there are more low-pressure bands ...
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1answer
92 views

How would a receding sea level affect cities along Asian & Australian coastlines?

To make a long story short, the previous ice age resulted in not just massive glaciers and building snow from appearing, but larger landmass as well due to most of the water being frozen from the ...
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2answers
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Feasibility of large and isolated swamp-like enviroment

For my world I would need a really large swamp (or similar kind of wetland). It should be about 200km in diameter, which should be quite possible given a large enough flat terrain and enough rain. ...
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1answer
184 views

What would be the implications of an ocean made from blood on the world? [closed]

In my world of Ulhe rather than having saltwater between continents the oceans are filled with the blood of a god. Besides being blue the blood has similar physical properties to human blood. It is ...
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3answers
105 views

Government power in an Ice Age [closed]

The setting of my story takes place during a future Ice Age, where the equator and parts of the southern hemisphere are a safe haven for humans. Which countries or regions would most likely be the '...
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7answers
747 views

What are some ways mass changing of terrain in a short period of time could occur?

By "short period of time", I'm referring to the timeframe of weeks to months (not days or hours). For example: at the start of one day the land is flat, but after a few weeks or months there is a ...
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7answers
1k views

How do I calculate sea level on a planet with no seas?

On one (of many) of the planets that I am planning out, there are no seas. The planet is mainly composed of enormous mountains, with some deserts in between. There are no seas or large bodies of ...
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3answers
104 views

What Else Could Create Jeffrey Linn's Coastlines BESIDES The Influence of Ice? [closed]

Who? Unfortunately, I could not find any background information about Jeffrey Linn, but he is better known for his sea level maps. Specifically, what a particular city would look like if sea levels ...
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5answers
189 views

Boiling sea between volcanoes

In my world, there is a chain of offshore volcanoes which are the result of a smaller plate hitting a larger one. There are two to three active volcanoes. My question is: two of these volcanoes are ...
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4answers
2k views

Calculating City Size based on Population

Question: I'm trying to determine how large (geographically) my city will have to be to accommodate for 1 million people. I have a city that was basically formed by the gods to be fertile land with a ...
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16answers
7k 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 ...
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6answers
844 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 ...
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6answers
605 views

How can I create an enormous crater?

My world has a huge crater (4400 miles in diameter) on a world that's roughly earth equivalent (so a circumference of 25000 miles). The native population doesn't need to know how it was formed but it ...
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2answers
169 views

How can I keep an area next to a mountain range from being a desert?

My world has a continent in the northern hemisphere that lies primarily in the Ferrel cell where the westerly winds are. The continent is fairly large, just a tad bit smaller then than North America. ...
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4answers
224 views

How can Mars have life but still be “The Red Planet”

Building on this question "Discovery of life on Mars" Mars is habitable (40% the mass of Earth, 6.06 m/s² gravity, escape velocity of 7.88 km/s, a satellite big enough to stabilize its axis and has ...
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18answers
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City made of glass in a desert?

My world has a city of glass found along the outskirts of a desert. I decided on this because sand can become glass and so it was a huge resource that could be used for building. However, the concern ...
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2answers
152 views

Reality Check- Small Scale Continent Geography

Is the following map fairly realistic? It is of a small continent, connected to a larger one, at a Europe like position on the globe. This is the continent in topographical map form, it also includes ...
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3answers
259 views

Can trees and plant life grow on rock?

So I’m creating a world where the ground is mainly made of different rocks and stone in most areas - soil is sparse. Could trees and plant life grow on the stone ground if a water source is nearby? ...
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2answers
208 views

How would climate be affected on a plateau 10 km above sea level?

I am curious as to what physical geographic features would be present on a plateau 10km above sea level. The Tibetan plateau is only 4km above sea level, so would more than doubling the height ...
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4answers
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How common is it for a river to enter a valley from a flatter plain?

before I get into my question I wanted to thank everyone for their input in my first thread about the general principles of river drawing. I have taken your comments under consideration and began ...
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4answers
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I'm going to have to redraw most of my rivers - what do I need to know to make them true to life?

I'm new here but I've been a worldbuilder for the last decade or so. I'm pretty late to the 'mapping out your country' party and I've only been at it for about 8 months, but I'm starting to see some ...
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10answers
755 views

Is it possible for a river to flow in a spiral pattern?

The question This question has a few parts: 1. Is it possible for a river to naturally form in the shape of a spiral? 2. If not, would an artificially-formed river, in the shape of a spiral, ...
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2answers
328 views

Which unique features should have a habitable planet originating from atmosphere stripped waterworld?

Premises: red dwarfs tend to have violent sun storms in their early years, thus are expected to strip atmosphere of planets that may be in their habitable zones; water worlds (including planets with ...
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1answer
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How would constant rhythmic tsunamis affect the coast lines of the Atlantic Ocean?

Premise: a massive organic structure sits somewhere in the Atlantic Ocean giving of an intermittent telekinetic pulse. This would presumably create a constant chain of tsunamis. What sort of abnormal ...
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4answers
223 views

Natural uncovering of desert ruins

My world has a semi-nomadic people that inhabit a vast sandy desert. Underneath this desert lie the ruins of an enormous metropolis -- a city that was abandoned tens of thousands of years ago. In the ...
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4answers
150 views

How might a naturally-occuring geographical barrier between two areas *suddenly* become permeable so that a few people can cross it?

The world is Earth, probably west coast of the USA, in the throes of severe climate disaster; major storms, earthquakes, droughts, fires and floods are the norm. I am looking for a way to suddenly ...