Mountain gorges incision history is documented using CRE dating.

The gorges result from transient erosional events with incision rates >10 mm a⁻¹.

High incision during the two last major deglaciation phases (LGM) at 16–14 ka, the Younger Dryas at 8–11 ka.

High incision during the warm and humid Holocene climatic optimum at 4–5 ka.

Periods of low incision rates (<1 mm a⁻¹) for long-term equilibrium between incision and uplift.