Geological Explanation for an Unusually Temperate Northern Mountain Valley
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So I'm working on a home-brew D&D setting and I have this idea for the my campaign to take place in a large isolated Valley completely surrounded by mountains. I also had the idea to have these mountains be at the edge of the known world in a cold otherwise inhospitable environment. The valley in question however would be temperate which would spark an initiative to settle the region, causing many brave individuals to make a hard trek for weeks to reach said location motivated by the promise of a land filled with many natural resources.
I am currently trying to come up with a geological explanation as to why the valley would be temperate. I think it would also be cool for said explanation to be a mystery that the players have the opportunity to uncover. Any thoughts would be appreciated. (Also, my world is Loosely Forgotten Realms based)
geology low-fantasy
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add a comment |
$begingroup$
So I'm working on a home-brew D&D setting and I have this idea for the my campaign to take place in a large isolated Valley completely surrounded by mountains. I also had the idea to have these mountains be at the edge of the known world in a cold otherwise inhospitable environment. The valley in question however would be temperate which would spark an initiative to settle the region, causing many brave individuals to make a hard trek for weeks to reach said location motivated by the promise of a land filled with many natural resources.
I am currently trying to come up with a geological explanation as to why the valley would be temperate. I think it would also be cool for said explanation to be a mystery that the players have the opportunity to uncover. Any thoughts would be appreciated. (Also, my world is Loosely Forgotten Realms based)
geology low-fantasy
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Welcome to Worldbuilding.SE! We're glad you could join us! When you have a moment, please click here to learn more about our culture and take our tour. Having just posted an answer, let me explain that we recommend waiting at least 24 hours before accepting an answer. New users are often temped to accept the first answer that meets their needs. We have participants all over the world and human nature is to ignore questions with accepted answers. Cheers!
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– JBH
yesterday
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You might consider the Okanaga Valley in Canada as a starting point: en.wikipedia.org/wiki/Okanagan Though if it's completely surrounded by mountains, it's going to be a lake :-) *Or desert if the rainfall is low enough, e.g. US Great Basin.)
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– jamesqf
yesterday
add a comment |
$begingroup$
So I'm working on a home-brew D&D setting and I have this idea for the my campaign to take place in a large isolated Valley completely surrounded by mountains. I also had the idea to have these mountains be at the edge of the known world in a cold otherwise inhospitable environment. The valley in question however would be temperate which would spark an initiative to settle the region, causing many brave individuals to make a hard trek for weeks to reach said location motivated by the promise of a land filled with many natural resources.
I am currently trying to come up with a geological explanation as to why the valley would be temperate. I think it would also be cool for said explanation to be a mystery that the players have the opportunity to uncover. Any thoughts would be appreciated. (Also, my world is Loosely Forgotten Realms based)
geology low-fantasy
$endgroup$
So I'm working on a home-brew D&D setting and I have this idea for the my campaign to take place in a large isolated Valley completely surrounded by mountains. I also had the idea to have these mountains be at the edge of the known world in a cold otherwise inhospitable environment. The valley in question however would be temperate which would spark an initiative to settle the region, causing many brave individuals to make a hard trek for weeks to reach said location motivated by the promise of a land filled with many natural resources.
I am currently trying to come up with a geological explanation as to why the valley would be temperate. I think it would also be cool for said explanation to be a mystery that the players have the opportunity to uncover. Any thoughts would be appreciated. (Also, my world is Loosely Forgotten Realms based)
geology low-fantasy
geology low-fantasy
asked yesterday
Beninja2Beninja2
1144
1144
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Welcome to Worldbuilding.SE! We're glad you could join us! When you have a moment, please click here to learn more about our culture and take our tour. Having just posted an answer, let me explain that we recommend waiting at least 24 hours before accepting an answer. New users are often temped to accept the first answer that meets their needs. We have participants all over the world and human nature is to ignore questions with accepted answers. Cheers!
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– JBH
yesterday
$begingroup$
You might consider the Okanaga Valley in Canada as a starting point: en.wikipedia.org/wiki/Okanagan Though if it's completely surrounded by mountains, it's going to be a lake :-) *Or desert if the rainfall is low enough, e.g. US Great Basin.)
$endgroup$
– jamesqf
yesterday
add a comment |
$begingroup$
Welcome to Worldbuilding.SE! We're glad you could join us! When you have a moment, please click here to learn more about our culture and take our tour. Having just posted an answer, let me explain that we recommend waiting at least 24 hours before accepting an answer. New users are often temped to accept the first answer that meets their needs. We have participants all over the world and human nature is to ignore questions with accepted answers. Cheers!
$endgroup$
– JBH
yesterday
$begingroup$
You might consider the Okanaga Valley in Canada as a starting point: en.wikipedia.org/wiki/Okanagan Though if it's completely surrounded by mountains, it's going to be a lake :-) *Or desert if the rainfall is low enough, e.g. US Great Basin.)
$endgroup$
– jamesqf
yesterday
$begingroup$
Welcome to Worldbuilding.SE! We're glad you could join us! When you have a moment, please click here to learn more about our culture and take our tour. Having just posted an answer, let me explain that we recommend waiting at least 24 hours before accepting an answer. New users are often temped to accept the first answer that meets their needs. We have participants all over the world and human nature is to ignore questions with accepted answers. Cheers!
$endgroup$
– JBH
yesterday
$begingroup$
Welcome to Worldbuilding.SE! We're glad you could join us! When you have a moment, please click here to learn more about our culture and take our tour. Having just posted an answer, let me explain that we recommend waiting at least 24 hours before accepting an answer. New users are often temped to accept the first answer that meets their needs. We have participants all over the world and human nature is to ignore questions with accepted answers. Cheers!
$endgroup$
– JBH
yesterday
$begingroup$
You might consider the Okanaga Valley in Canada as a starting point: en.wikipedia.org/wiki/Okanagan Though if it's completely surrounded by mountains, it's going to be a lake :-) *Or desert if the rainfall is low enough, e.g. US Great Basin.)
$endgroup$
– jamesqf
yesterday
$begingroup$
You might consider the Okanaga Valley in Canada as a starting point: en.wikipedia.org/wiki/Okanagan Though if it's completely surrounded by mountains, it's going to be a lake :-) *Or desert if the rainfall is low enough, e.g. US Great Basin.)
$endgroup$
– jamesqf
yesterday
add a comment |
3 Answers
3
active
oldest
votes
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I like JBH's suggestion. If that should be unsuitable for your campaign:
- The mountain ranges and prevailing winds bring air from more temperate areas. The wind gets "funneled" just to that valley.
- It is a coastal area surrounded by mountains on three sides and the ocean on the remaining side. A warm current raises the average temperature a couple of degrees.
- It is the only real valley in the area, but there are plenty of highlands, a thousand metres or so higher. The altitude difference affects temperature and rainfall. That's not immediately obvious because the passes between the mountains are yet higher.
$endgroup$
$begingroup$
I upvoted this answer because it's a great idea. What o.m. is talking about is making the valley a narrow banana belt. In other words, the mountain range is such that warm weather from the southern oceans either fall at the coast or are funneled through the valley. All other areas (other than the cost itself) are cold. Nice idea!
$endgroup$
– JBH
yesterday
add a comment |
$begingroup$
It may look like a valley, but it's actually the caldera of a volcano
The caldera of a volcano is the crater at the top of the mountain (as a very specific example). So, what you have is a tightly clustered mountain range created over time through volcanic action and your valley happens to be the caldera of one of the volcanoes, but...
Your caldera was once a lake, but erosion wore away a side such that the lake drained, leaving a valley.
The volcano, bless its heart, is still active. Beneath the caldera is an active magma pocket warming the valley.
Because volcanic soil is often very rich, your valley would be justifiably lush. Also, casting any spell having to do with earthquakes would be bad. Very bad. As in "Oh, Cra..." bad.
Edit: Note that a caldera need not be at the top of a high mountain. Yellowstone National Park is, basically, one huge caldera. What the caldera buys you is justification for the mountains/hills surrounding your valley and its unusual warmth.
$endgroup$
$begingroup$
Yellowstone still freezes in the winter. Only the actual geothermal basins and the rivers fed by them remain snow-free.
$endgroup$
– Mark
yesterday
$begingroup$
@Mark, I didn't suggest otherwise. I've only used Yellowstone as an example of a caldera that isn't at the peak of a tall mountain.
$endgroup$
– JBH
yesterday
$begingroup$
Considering how thin the crust over this volcano would need to be for it to make the temperate environment, this can also explain why nobody's living here already...
$endgroup$
– Ed Grimm
9 hours ago
add a comment |
$begingroup$
One possible explanation is a combination of a Rain Shadow and a Foehn Wind. Long story short, is that the height of mountain range will interfere with normal precipitation patterns, and create a warm dry spot on the leeward side of the mountain.
New contributor
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3 Answers
3
active
oldest
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3 Answers
3
active
oldest
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active
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active
oldest
votes
$begingroup$
I like JBH's suggestion. If that should be unsuitable for your campaign:
- The mountain ranges and prevailing winds bring air from more temperate areas. The wind gets "funneled" just to that valley.
- It is a coastal area surrounded by mountains on three sides and the ocean on the remaining side. A warm current raises the average temperature a couple of degrees.
- It is the only real valley in the area, but there are plenty of highlands, a thousand metres or so higher. The altitude difference affects temperature and rainfall. That's not immediately obvious because the passes between the mountains are yet higher.
$endgroup$
$begingroup$
I upvoted this answer because it's a great idea. What o.m. is talking about is making the valley a narrow banana belt. In other words, the mountain range is such that warm weather from the southern oceans either fall at the coast or are funneled through the valley. All other areas (other than the cost itself) are cold. Nice idea!
$endgroup$
– JBH
yesterday
add a comment |
$begingroup$
I like JBH's suggestion. If that should be unsuitable for your campaign:
- The mountain ranges and prevailing winds bring air from more temperate areas. The wind gets "funneled" just to that valley.
- It is a coastal area surrounded by mountains on three sides and the ocean on the remaining side. A warm current raises the average temperature a couple of degrees.
- It is the only real valley in the area, but there are plenty of highlands, a thousand metres or so higher. The altitude difference affects temperature and rainfall. That's not immediately obvious because the passes between the mountains are yet higher.
$endgroup$
$begingroup$
I upvoted this answer because it's a great idea. What o.m. is talking about is making the valley a narrow banana belt. In other words, the mountain range is such that warm weather from the southern oceans either fall at the coast or are funneled through the valley. All other areas (other than the cost itself) are cold. Nice idea!
$endgroup$
– JBH
yesterday
add a comment |
$begingroup$
I like JBH's suggestion. If that should be unsuitable for your campaign:
- The mountain ranges and prevailing winds bring air from more temperate areas. The wind gets "funneled" just to that valley.
- It is a coastal area surrounded by mountains on three sides and the ocean on the remaining side. A warm current raises the average temperature a couple of degrees.
- It is the only real valley in the area, but there are plenty of highlands, a thousand metres or so higher. The altitude difference affects temperature and rainfall. That's not immediately obvious because the passes between the mountains are yet higher.
$endgroup$
I like JBH's suggestion. If that should be unsuitable for your campaign:
- The mountain ranges and prevailing winds bring air from more temperate areas. The wind gets "funneled" just to that valley.
- It is a coastal area surrounded by mountains on three sides and the ocean on the remaining side. A warm current raises the average temperature a couple of degrees.
- It is the only real valley in the area, but there are plenty of highlands, a thousand metres or so higher. The altitude difference affects temperature and rainfall. That's not immediately obvious because the passes between the mountains are yet higher.
answered yesterday
o.m.o.m.
61.4k789200
61.4k789200
$begingroup$
I upvoted this answer because it's a great idea. What o.m. is talking about is making the valley a narrow banana belt. In other words, the mountain range is such that warm weather from the southern oceans either fall at the coast or are funneled through the valley. All other areas (other than the cost itself) are cold. Nice idea!
$endgroup$
– JBH
yesterday
add a comment |
$begingroup$
I upvoted this answer because it's a great idea. What o.m. is talking about is making the valley a narrow banana belt. In other words, the mountain range is such that warm weather from the southern oceans either fall at the coast or are funneled through the valley. All other areas (other than the cost itself) are cold. Nice idea!
$endgroup$
– JBH
yesterday
$begingroup$
I upvoted this answer because it's a great idea. What o.m. is talking about is making the valley a narrow banana belt. In other words, the mountain range is such that warm weather from the southern oceans either fall at the coast or are funneled through the valley. All other areas (other than the cost itself) are cold. Nice idea!
$endgroup$
– JBH
yesterday
$begingroup$
I upvoted this answer because it's a great idea. What o.m. is talking about is making the valley a narrow banana belt. In other words, the mountain range is such that warm weather from the southern oceans either fall at the coast or are funneled through the valley. All other areas (other than the cost itself) are cold. Nice idea!
$endgroup$
– JBH
yesterday
add a comment |
$begingroup$
It may look like a valley, but it's actually the caldera of a volcano
The caldera of a volcano is the crater at the top of the mountain (as a very specific example). So, what you have is a tightly clustered mountain range created over time through volcanic action and your valley happens to be the caldera of one of the volcanoes, but...
Your caldera was once a lake, but erosion wore away a side such that the lake drained, leaving a valley.
The volcano, bless its heart, is still active. Beneath the caldera is an active magma pocket warming the valley.
Because volcanic soil is often very rich, your valley would be justifiably lush. Also, casting any spell having to do with earthquakes would be bad. Very bad. As in "Oh, Cra..." bad.
Edit: Note that a caldera need not be at the top of a high mountain. Yellowstone National Park is, basically, one huge caldera. What the caldera buys you is justification for the mountains/hills surrounding your valley and its unusual warmth.
$endgroup$
$begingroup$
Yellowstone still freezes in the winter. Only the actual geothermal basins and the rivers fed by them remain snow-free.
$endgroup$
– Mark
yesterday
$begingroup$
@Mark, I didn't suggest otherwise. I've only used Yellowstone as an example of a caldera that isn't at the peak of a tall mountain.
$endgroup$
– JBH
yesterday
$begingroup$
Considering how thin the crust over this volcano would need to be for it to make the temperate environment, this can also explain why nobody's living here already...
$endgroup$
– Ed Grimm
9 hours ago
add a comment |
$begingroup$
It may look like a valley, but it's actually the caldera of a volcano
The caldera of a volcano is the crater at the top of the mountain (as a very specific example). So, what you have is a tightly clustered mountain range created over time through volcanic action and your valley happens to be the caldera of one of the volcanoes, but...
Your caldera was once a lake, but erosion wore away a side such that the lake drained, leaving a valley.
The volcano, bless its heart, is still active. Beneath the caldera is an active magma pocket warming the valley.
Because volcanic soil is often very rich, your valley would be justifiably lush. Also, casting any spell having to do with earthquakes would be bad. Very bad. As in "Oh, Cra..." bad.
Edit: Note that a caldera need not be at the top of a high mountain. Yellowstone National Park is, basically, one huge caldera. What the caldera buys you is justification for the mountains/hills surrounding your valley and its unusual warmth.
$endgroup$
$begingroup$
Yellowstone still freezes in the winter. Only the actual geothermal basins and the rivers fed by them remain snow-free.
$endgroup$
– Mark
yesterday
$begingroup$
@Mark, I didn't suggest otherwise. I've only used Yellowstone as an example of a caldera that isn't at the peak of a tall mountain.
$endgroup$
– JBH
yesterday
$begingroup$
Considering how thin the crust over this volcano would need to be for it to make the temperate environment, this can also explain why nobody's living here already...
$endgroup$
– Ed Grimm
9 hours ago
add a comment |
$begingroup$
It may look like a valley, but it's actually the caldera of a volcano
The caldera of a volcano is the crater at the top of the mountain (as a very specific example). So, what you have is a tightly clustered mountain range created over time through volcanic action and your valley happens to be the caldera of one of the volcanoes, but...
Your caldera was once a lake, but erosion wore away a side such that the lake drained, leaving a valley.
The volcano, bless its heart, is still active. Beneath the caldera is an active magma pocket warming the valley.
Because volcanic soil is often very rich, your valley would be justifiably lush. Also, casting any spell having to do with earthquakes would be bad. Very bad. As in "Oh, Cra..." bad.
Edit: Note that a caldera need not be at the top of a high mountain. Yellowstone National Park is, basically, one huge caldera. What the caldera buys you is justification for the mountains/hills surrounding your valley and its unusual warmth.
$endgroup$
It may look like a valley, but it's actually the caldera of a volcano
The caldera of a volcano is the crater at the top of the mountain (as a very specific example). So, what you have is a tightly clustered mountain range created over time through volcanic action and your valley happens to be the caldera of one of the volcanoes, but...
Your caldera was once a lake, but erosion wore away a side such that the lake drained, leaving a valley.
The volcano, bless its heart, is still active. Beneath the caldera is an active magma pocket warming the valley.
Because volcanic soil is often very rich, your valley would be justifiably lush. Also, casting any spell having to do with earthquakes would be bad. Very bad. As in "Oh, Cra..." bad.
Edit: Note that a caldera need not be at the top of a high mountain. Yellowstone National Park is, basically, one huge caldera. What the caldera buys you is justification for the mountains/hills surrounding your valley and its unusual warmth.
edited yesterday
answered yesterday
JBHJBH
45.7k696218
45.7k696218
$begingroup$
Yellowstone still freezes in the winter. Only the actual geothermal basins and the rivers fed by them remain snow-free.
$endgroup$
– Mark
yesterday
$begingroup$
@Mark, I didn't suggest otherwise. I've only used Yellowstone as an example of a caldera that isn't at the peak of a tall mountain.
$endgroup$
– JBH
yesterday
$begingroup$
Considering how thin the crust over this volcano would need to be for it to make the temperate environment, this can also explain why nobody's living here already...
$endgroup$
– Ed Grimm
9 hours ago
add a comment |
$begingroup$
Yellowstone still freezes in the winter. Only the actual geothermal basins and the rivers fed by them remain snow-free.
$endgroup$
– Mark
yesterday
$begingroup$
@Mark, I didn't suggest otherwise. I've only used Yellowstone as an example of a caldera that isn't at the peak of a tall mountain.
$endgroup$
– JBH
yesterday
$begingroup$
Considering how thin the crust over this volcano would need to be for it to make the temperate environment, this can also explain why nobody's living here already...
$endgroup$
– Ed Grimm
9 hours ago
$begingroup$
Yellowstone still freezes in the winter. Only the actual geothermal basins and the rivers fed by them remain snow-free.
$endgroup$
– Mark
yesterday
$begingroup$
Yellowstone still freezes in the winter. Only the actual geothermal basins and the rivers fed by them remain snow-free.
$endgroup$
– Mark
yesterday
$begingroup$
@Mark, I didn't suggest otherwise. I've only used Yellowstone as an example of a caldera that isn't at the peak of a tall mountain.
$endgroup$
– JBH
yesterday
$begingroup$
@Mark, I didn't suggest otherwise. I've only used Yellowstone as an example of a caldera that isn't at the peak of a tall mountain.
$endgroup$
– JBH
yesterday
$begingroup$
Considering how thin the crust over this volcano would need to be for it to make the temperate environment, this can also explain why nobody's living here already...
$endgroup$
– Ed Grimm
9 hours ago
$begingroup$
Considering how thin the crust over this volcano would need to be for it to make the temperate environment, this can also explain why nobody's living here already...
$endgroup$
– Ed Grimm
9 hours ago
add a comment |
$begingroup$
One possible explanation is a combination of a Rain Shadow and a Foehn Wind. Long story short, is that the height of mountain range will interfere with normal precipitation patterns, and create a warm dry spot on the leeward side of the mountain.
New contributor
$endgroup$
add a comment |
$begingroup$
One possible explanation is a combination of a Rain Shadow and a Foehn Wind. Long story short, is that the height of mountain range will interfere with normal precipitation patterns, and create a warm dry spot on the leeward side of the mountain.
New contributor
$endgroup$
add a comment |
$begingroup$
One possible explanation is a combination of a Rain Shadow and a Foehn Wind. Long story short, is that the height of mountain range will interfere with normal precipitation patterns, and create a warm dry spot on the leeward side of the mountain.
New contributor
$endgroup$
One possible explanation is a combination of a Rain Shadow and a Foehn Wind. Long story short, is that the height of mountain range will interfere with normal precipitation patterns, and create a warm dry spot on the leeward side of the mountain.
New contributor
New contributor
answered yesterday
user2745094user2745094
1463
1463
New contributor
New contributor
add a comment |
add a comment |
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$begingroup$
Welcome to Worldbuilding.SE! We're glad you could join us! When you have a moment, please click here to learn more about our culture and take our tour. Having just posted an answer, let me explain that we recommend waiting at least 24 hours before accepting an answer. New users are often temped to accept the first answer that meets their needs. We have participants all over the world and human nature is to ignore questions with accepted answers. Cheers!
$endgroup$
– JBH
yesterday
$begingroup$
You might consider the Okanaga Valley in Canada as a starting point: en.wikipedia.org/wiki/Okanagan Though if it's completely surrounded by mountains, it's going to be a lake :-) *Or desert if the rainfall is low enough, e.g. US Great Basin.)
$endgroup$
– jamesqf
yesterday