Adverse possession extends only to the property actually possessed. If the original owner had a title to a greater area (or volume) of property, the disseisor does not obtain all of it. The exception to this is when the disseisor enters the land under a color of title to an entire parcel, their continuous and actual possession of a small part of that parcel will perfect their title to the entire parcel defined in their color of title. Thus a disseisor need not build a dwelling on, or farm on, every portion of a large tract in order to prove possession, as long as their title does correctly describe the entire parcel.