That Old Problem, Mountains and Rivers - Feedback please.

[joaodafi]

Hello cartographers, I need the opinion of you.
I was remaking an old map and decided, in the process, redistribute the mountains, lakes and rivers, after all one depends on the other to give a more realistic look.
Well, I really want to know ... What would you think if I should change, add or remove something.
Altitude e rios.jpg
Height map with rivers and lakes.
Light Blue: Ocean
Dark Blue: Rivers and Lakes
Land height representation in meters.
Black: Up to 2800.
Dark Grey: Between 1400 and 2800.
Gray: Between 500 and 1400.
Light Gray: Between 0 and 500.

Sorry any grammatical error, I'm better with Portuguese than English.

[Azélor]

The rivers looks fine to me.

[Formal Abu]

Looks good. That is an interesting way of doing a draft map - I like it.

[Pixie]

From my perspective, there's nothing wrong with it either. It looks good and realistic.

How large is that area supposed to be? An island, a continent? If it is an island, why not use Wilbur to get a more detailed heightmap..

[Vidgange]

I'm not all that experienced when it comes to map making and/or geography, climate, rainfall and whatnot, but I see that pretty big valley in the southern part of the island/continent surrounded by mountains and kinda feel that that probably should be some kind of lake there - similar to the Caspian Sea, which doesn't have an outlet to the ocean. But maybe I'm missing some basic element that everyone knows about and is well established as to why there isn't any rivers/lakes in that valley?

[johnvanvliet]

took a moment
the heights are NEGATIVE
black is the high area and the white is the low land area ( a bit backwards ? but)

i am used to DEM's sealevel is 0 and the pixel value is in meters above sealevel
like this quick edit


nothing really sticks out

a few rivers here and there look to be a bit off for the height of the area , but just minor things

[outlawwolff]

Can I ask what you mean by them depending on one another? I am a novice at all things cartography related, so I just assumed the natural way was to have a river run down from a mountain or in from a sea or ocean?

[johnvanvliet]

or in from a sea or ocean?

that would have the river running BACKWARDS

now during some Hightides in some locations sea water might run into the river causing a mix of SALT and fresh water

rivers are ABOVE average sealevel

[Azélor]

I guess what he meant was that the rivers depend on the topography (mountains included). And river will modify the landscape overtime with the erosion process, like in the Grand Canyon.