Green Hill Cemetery is a municipal cemetery for the city of Greensboro, North Carolina. It is located just northwest of the downtown area. You can find a map of downtown Greensboro with the cemetery's location on it at this link:

Greensboro CVB map of downtown Greensboro

If you do not find your ancestor's grave listed in those in the USGenWeb Digital Archives for Guilford County, linked to the "Churches and Cemeteries" section of this website's index page (see below), you may call the Greensboro Cemetery Division office, and they can check their files on Green Hill to see if the grave is listed there. The office number is 336-373-2160, and the address is 1001 4th Street, Greensboro, NC, 27405.