Tax maps are fundamental to the appraisal (valuation) of real estate. They help to determine the location of property, indicate the size and shape of each parcel, and illustrate its relation to features that affect value. It is, therefore, necessary that the tax maps and assessment system records accurately represent what is actually owned by the taxpayer. Although tax maps serve as a general reference to property locations, they are not a substitute for official survey plats.
W. Va. Code R. § 189-3-2