Dlc (Horizon: Zero Dawn)

From the initial location/base you jump strictly to the north - there the peninsula has grown to the main map.
You only need a little on the plot to advance from the starting location released. You see an exclamation point blue sign - this Persian tells about DLC. Also Persian with a blue exclamation mark can be found at the first friendly outpost of the gate of the solar tower when you flout the main story.

The main plot finished, looked in the main /additional tasks could not understand what where missed.
Thank you, I'll try to find it.