The Greatrun River is an unmarked location in Horizon Zero Dawn.  It is a river running through the center of the Sundom, in the Greatrun River Canyon[1], primarily within the Gatelands region. The Carja settlement of Lone Light rests on a cliff overlooking the river, near a bridge along the Way of Broken Stones. It forms the border between the Gatelands and The Jewel.


"[Lone Light's] positioning high above the Greatrun River canyon protects it from most roving dangers."
Horizon Zero Dawn Collector's Edition Guide



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