What term is used for an easement that is not typically insurable and is independent of possession of another tract?

The term for an easement that is not typically insurable and is independent of possession of another tract is "easement in gross." This type of easement benefits an individual or a legal entity rather than the land itself and is not tied to any specific piece of property. Essentially, an easement in gross grants the right to use another's land for a specific purpose, such as utility lines or access to a waterway, regardless of ownership or possession of an adjacent lot.

In the context of title insurance, easements in gross are often considered less insurable because they do not provide the accompanying ownership interest in land associated with other easements, such as appurtenant easements that benefit a particular piece of property. This distinction highlights the unique nature of easements in gross compared to others, making them relevant to the question at hand.