An easement appurtenant:

An easement appurtenant runs with the land, meaning that it is tied to the property itself rather than to the individual owner. When a property that has an easement appurtenant is sold, the easement transfers along with the property to the new owner. This characteristic ensures that the benefits and burdens associated with the easement are maintained even as ownership changes.

In contrast, an easement that does not run with the land may terminate upon certain conditions, such as the sale of the property. Additionally, easements are generally not revocable without the agreement of both parties involved; an easement appurtenant persists as long as the dominant estate exists unless formally released. While a utility company's right-of-way may be an easement, that situation doesn't specifically define an easement appurtenant, as it can refer to a different type of easement, like an easement in gross. Therefore, the defining characteristic of an easement appurtenant is its ability to run with the land.