Utrecht Hill Ridge (Dutch: Utrechtse Heuvelrug) is a ridge of low sandhills that stretches in a direction from southeast to northwest over the Dutch province of Utrecht and over a part of North Holland.
On the southeastern side the ridge rises sharply from the valley of the Nederrijn (Lower Rhine).
The Utrecht Hill Ridge was created 150.000 years ago as a push moraine in the Saalian, the ice age preceding the last.
Before that time the rivers Rhine and Meuse flowed more northerly, and created deposits of sand.
The Utrecht Hill Ridge was then largely covered with heather and sand drifts.