What is the (average) depth of the sand in the Sahara Desert?

It's actually quite difficult to answer this question. Don't really know how deep the sand goes before the bedrock starts. One estimate gives the average depth of the sand to be approximately 150 meters while the top of the dunes can reach a height of 320 m from the bedrock (170-180 m high measured from 'sand-level'). read more

One estimate gives the average depth of the sand to be approximately 150 meters while the top of the dunes can reach a height of 320 m from the bedrock (170-180 m high measured from ‘sand-level’). read more

One estimate gives the average depth of the sand to be approximately 150 metres while the top of the dunes can reach a height of 320 m from the bedrock (170-180 m high measured from ‘sand-level’). read more

Yes. At the foot of the downwind side of a dune, the lightest and smallest particles accumulate. read more