koraha - open country; desert; mud-flats
Koraha. 1. a. Extended, open.
2. Shallow, of water covering extensive mud flats. He tai koraha to Manawaora.
3. n. Open country. Ta te tau kai pai hoki hei tohatoha i te tangata ki te koraha haere ai (T. 81).
Williams Dictionary
etahi hēpara e noho koraha anasome shepherds (who were) staying out in the wilds