Complex sentence: The Verdon Gorge is narrow and deep, with depths of 250 to 700 metres and widths of 6 to 100 metres at the level of the Verdon river, and 200 to 1500 metres from one side of the Gorge to the other at the summit.
Split into simpler sentences: The Verdon Gorge is narrow and deep, with depths of 250 to 700 metres and widths of 6 to 100 metres at the level of the Verdon river. It is 200 to 1500 metres wide from one side of the Gorge to the other at the summit.