Federal Lands

This data layer contains polygon features representing the approximate size and location of parcels owned by the federal government located within Prince William County, Virginia. It was created to provide basic information regarding property location and boundaries, and is used as a graphical representation of legally recorded deed and plat documents for properties. Parcel ownership and recordation information is not included in this layer but can be purchased separately from the Office of Real Estate Assessments. Users should be aware that this data does not represent legal property boundary descriptions, nor is it suitable for boundary determination of individual parcels. Any depiction of physical improvements, property lines or boundaries is for general information only and shall not be used for the design modification or construction of improvements to real property or for flood plain determination. The layer was derived from a variety of source maps including: mylar county parcel maps, plats of surveys, deed descriptions, subdivision maps, and highway right-of-way plats. These source materials were of several different scales and were from dates ranging from the early 1900's to the present.本数据图层包含多边形要素，用以表征弗吉尼亚州威廉王子县（Prince William County）境内联邦政府所有地块的近似范围与位置。本图层旨在提供地块位置与边界的基础信息，可作为已合法登记的不动产契约与宗地图文件的图形化呈现形式。本图层未包含地块所有权与登记信息，此类信息可向不动产评估办公室（Office of Real Estate Assessments）单独购买。 用户需注意：本数据并非法定的不动产边界描述文件，亦不适用于单块地块的边界界定。任何关于实物改良设施、地块界线或边界的图示仅作通用参考，不得用于不动产改良设施的设计变更、施工，亦不得用于洪水泛区判定。 本图层源自多种原始地图资料，包括：聚酯薄膜（mylar）材质的县地籍地块图、测量宗地图、不动产契约描述文件、细分地块图以及公路用地宗地图。这些原始资料比例尺各不相同，制作时间跨度为20世纪初至今。