In Persian, objects can be located in respect to a grave. For instance, and these are words that I've made up myself just to give you an idea of what I'm looking for:
Upper head region: Any place above the position of the head of the corpse.
Under feet region: The region after the feet of the corpse.
These are probably very vague definition, so please check the image that has been attached.
Edit: A sample sentence, in response to @mike65535:
Normally, the mourning ceremony begins with the crowd gathering in the "upper head" of the grave and performing religious rites, and then moving towards the "lower feet" for the family of the deceased to bid farewell.
Edit 2: In Persian, the words are بالا سر (read Bala Sar) and پایین پا (read Payeen pa)