Yontasa Expanse
The Yontasa Expanse was a region of space in the Delta Quadrant.

In 2377, an away team from the  traveled to a Borg debris field just outside the Yontasa Expanse, in order to recover a replacement cortical node for Seven of Nine. ()
Regions

de:Yontasa-Ausdehnung
it:Distesa Yontasa
nl:Yontasa expansie