Moduk is the northernmost region of North Haless, bordering the Forbidden Plains to its west via the Nuzurbokh region, as well as the Odheongu and Khaashalg regions its south. It is surrounded to it's north and east by ocean, namely the Northern Sea and the Northeast Haless Coast.
Composed of predominantly forests, it contains a small area of steppes on it's periphery where it borders the Unarkhürigh Mountains. Modern scholars have attributed the lack of historical major settlements within the region to the sheer density of its taiga forests, in addition to the region's natural poor soil quality, rendering any attempts of large-scale agricultural cultivation exceedingly difficult and ultimately futile.