obscure zone
Definitions
An area that is difficult to see, understand, or access.
A region that is little known or poorly understood.
Examples
The map showed an obscure zone beyond the mountains.
We found an obscure zone in the old archive.
An area that is difficult to see, understand, or access.
A region that is little known or poorly understood.
The map showed an obscure zone beyond the mountains.
We found an obscure zone in the old archive.