Original: In the northwest the Iller-Lech Plateau borders on the Swabian Jura (unit D60 on the map) and, in the extreme northeast, on the Franconian Jura (unit D61 on the map). The boundary with these two natural regions is roughly formed by the course of the river Danube.
Simplified: In the northwest: the Swabian Jura (D60 on the map); The river Danube is roughly the border between the two natural regions.