How do I find where my great grandfathers grave is in a very large cemetery. How

Question:

How do I find where my great grandfathers grave is in a very large cemetery. How can I know where it is?

located precisely? I am in England.

Best Answer - Chosen by Asker: Contact the local council or look at their website.
Find the department who look after the cemetery.
When I phoned one such dept. the member of staff was very helpful and suggested I call in their office. She helped me search the records and I was able to locate the unmarked grave of my Great Grandparents.