Visited Ming Tombs in 1985 in Peking. From what I am reading about these tombs, it does not fit.

I remember walking down a hill with grey-white stone steps - down and down and down - quite an exercise to be able to enter a chamber. At end, there were tall wooden boxes in a room - is this the the tomb? I was disappointed! Engraved tombs lay on flat ground; the guide explaining that folks were short statured, hence small tombs. Stones in shape of a coffin. Is this the location described as Dingling or that of Youngle, the Emperor?