The Dalmine sector was a region of space. The Borg once assimilated a small Talaxian freighter, with a crew of 39, in the Dalmine sector. (VOY: "The Raven")

This sector was only mentioned in dialogue.
The Dalmine sector was named by Bryan Fuller. He invented the name "Dalmine" as a derivative of the name "Dalmatian". (Information from Larry Nemecek)
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