Are any lakes really landlocked?

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Discussion Overview

The discussion revolves around the concept of landlocked lakes, exploring definitions, examples, and the implications of being landlocked. Participants examine whether any lakes can truly be considered landlocked given the interconnectedness of water bodies and the varying definitions of the term.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • Some participants argue that all bodies of water are interconnected, questioning the validity of the term "landlocked."
  • Others assert that there are indeed landlocked bodies of water, citing the Caspian Sea as an example, which they claim has no rivers flowing out of it.
  • Several participants clarify that "landlocked" can mean having no navigable route to the sea rather than the absence of rivers entirely.
  • One participant notes that the Caspian Sea has rivers flowing into it but none flowing out, emphasizing the importance of the definition of landlocked.
  • Another participant mentions that Canada has numerous lakes, many of which are isolated and do not have a source of water other than glaciers or ice sheets.
  • Discussion includes the concept of endorheic basins, with examples like the Great Salt Lake and the Sea of Aral, which are described as terminal lakes where water collects but does not flow out.
  • Participants raise questions about lakes formed in volcanic or impact craters, suggesting these may also be considered landlocked.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the definition of landlocked lakes, with multiple competing views on what constitutes being landlocked and whether any lakes can truly be classified as such.

Contextual Notes

Definitions of "landlocked" vary among participants, leading to ambiguity in the discussion. The examples provided, such as the Caspian Sea and endorheic basins, highlight the complexity of the topic.

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Landlocked means surrounded by land.

Often people say that a lake is landlocked.However I am not sure that it is completely true.

I mean all bodies of water are connected 1 way or another.

So can you really say that a body of water is landlocked?
 
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You only need to open the atlas and have a good look at it to see that there are huge bodies of water that are completely landlocked. The Caspian sea is a prime example. Not a single river is connected to it.
 
I think you are just hung up on a poor (limited) definition of what "landlocked" means.

In addition to what pwiz said, "landlocked" does not even necessarily mean no rivers, it can mean "having no navigable route to the sea".
 
phinds said:
In addition to what pwiz said, "landlocked" does not even necessarily mean no rivers, it can mean "having no navigable route to the sea".
I have never seen a definition that required there be no rivers connected to it, but always, as you have said, "no navigable route to the sea", or perhaps more commonly "no route to the sea via river".

As a clarification of pwiz's post: the Caspian Sea has several rivers connected to it, but all flow in, none flow out.
 
Ophiolite said:
I have never seen a definition that required there be no rivers connected to it, but always, as you have said, "no navigable route to the sea", or perhaps more commonly "no route to the sea via river".

As a clarification of pwiz's post: the Caspian Sea has several rivers connected to it, but all flow in, none flow out.

Canada has 2.1 million lakes (1.9 million have no name). Thousands of these are without source of water other than retreating ice sheets or glaciers. Tens of thousands of lakes, especially kettle lakes vary in size due to annual weather variables, or dry up seasonally and many eventually cease to be lakes. Topography changes constantly and with it water flows, river basin drainage, etc. Thousands of lakes are isolated stand alone features.
 
Ophiolite said:
I have never seen a definition that required there be no rivers connected to it, but always, as you have said, "no navigable route to the sea", or perhaps more commonly "no route to the sea via river".

As a clarification of pwiz's post: the Caspian Sea has several rivers connected to it, but all flow in, none flow out.
The Caspian Sea, the Sea of Aral, and the Great Salt Lake are all examples of what the geologists and such call "endorheic" basins or "terminal lakes", i.e. places where the physical geography of the land is such that the surrounding area drains into it, but there are no means whereby what collects in such basins can flow out to an ocean or a river:

https://en.wikipedia.org/wiki/Endorheic_basin

There are quite a few such bodies of water scattered around the world, and a few which existed in the past but do not any longer.

The Mediterranean and the Black Seas were once terminal basins, but due to the movement of the earth, passages to the ocean or to and adjacent seas opened up and allowed these basins to fill and remain connected to larger bodies of water. Lake Bonneville once surrounded what is now the Great Salt Lake, but the former body of water gradually shrank, leaving behind the Bonneville salt flats and the Great Salt Lake.
 
How about lakes in volcanic craters?
 
Jobrag said:
How about lakes in volcanic craters?

Also in impact craters. There is a big one in Quebec.
 
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