What do you call an area in a cemetery designated for multiple grave spaces?

The term for an area in a cemetery designated for multiple grave spaces is referred to as a "lot." In cemetery terminology, a lot is typically a plot of land that can contain several graves, making it a suitable choice for families wanting to be interred close to one another. Lots can vary in size and may accommodate different configurations, allowing for variations in how families choose to memorialize their loved ones.

The other terms listed do not accurately describe this specific area. A grave marker refers to a stone or plaque that identifies a grave, while a grave covering could imply an item placed over a grave, like soil or a decorative cover. A memorial park refers more broadly to a designed space that may have memorials, but it doesn't specifically designate the actual grave sites like a lot does. Thus, "lot" is the most fitting terminology for an area in a cemetery that encompasses multiple grave spaces.