A has a negative easement from B.

Conversely, a negative easement might restrict B from blocking A's mountain view by putting up a wall of trees.

In all U.S. jurisdictions, an easement for view (which is a negative easement) cannot be created by prescription.

In most U.S. jurisdictions, a prescriptive easement can only be determined for an affirmative easement not a negative easement.

An affirmative easement is the right to use another's property for a specific purpose, while a negative easement is the right to prevent another from performing an otherwise lawful activity on their property.

Courts were particularly chary with "positive covenants" (which might require a landowner's expenditure and could not be fulfilled by doing nothing) and "negative easements" (which unlike covenants might be acquired without agreement).

A historical example of Solar access is Ancient Lights, a doctrine based on English law that refers to a negative easement that prevents the owner or occupier of an adjoining structure from building or placing on his own land anything that has the effect of obstructing the light of the dominant tenement.