NCR Park Management (Jurisdictional) Boundaries

This polygon dataset represents the jurisdictional park boundaries for the National Park Service (NPS) units in the National Capital Region. The polygons represent the land the is owned and managed by the NPS including which NPS administrative unit manages it. This boundary is equivalent to the type of boundary that is displayed on park brochure maps. This boundary data takes into consider Transfers of Jurisdiction so that land which has been transferred to another federal agency, including the District of Columbia government, does not appear as being NPS land. The NPS has no authority, interest, or jurisdiction over transferred land. Although the legal mechanism is different from a sale or disposal, the functional result is the same; it is no longer National Park Service land. This boundary identifies the NPS unit that administers and manages the land, not the legislated unit by which it was acquired by the NPS. This allows the user the identify which NPS unit manages the facilities, maintains the resources, which NPS.gov website provides information about it, and which superintendent is the steward of it. This data is available on the NPS Data Store, part of the Integrated Resource Management Applications (IRMA) Portal: Park Management (Jurisdictional) Boundaries, National Capital Region NPS (IRMA ID 2305168). It's also linked to in the Regional Datasets (Spatial Basedata), National Capital Region, National Park Service on IRMA (IRMA ID 2305197). The Land Resources Division manages the NPS boundary data related to land acquisition and realty activities. They publish and maintain several datasets related to NPS boundaries which are identified as authoritative. They provide different information than is provided in this dataset. Please keep in mind the intended use of the data when choosing the dataset to use. For the legislated unit boundaries, see National Park Service Land Resources Division Tract and Boundary Service feature layer. That dataset includes three layers. The legislated boundary (nps_boundary) is the extent the NPS can acquire without needing additional legislation. These boundaries include land not owned by the NPS. It’s dissolved by legislated unit. The legislated boundary centroids (nps_boundary_centroids) are autogenerated points from the legislated boundary. The tracts boundaries (nps_tracts) are polygons representing individual tracts (similar to parcels) that comprise the legislated boundary. These tracts identify the land status, but do not identify Transfers of Jurisdiction. For the fee boundaries, see the NPS Fee Boundaries feature layer. This is the conglomeration of tracts list as “NPS FEE” in the nps_tracts layer. It does not take into consider Transfers of Jurisdiction, so includes non-NPS land in the District of Columbia.本多边形数据集代表了国家公园管理局（National Park Service, NPS）在国家首都辖区的管辖公园边界。此类多边形用于标识由NPS所有并管理的土地，以及负责管理该土地的NPS行政单元。该边界与公园宣传册地图上展示的边界类型完全一致。 此边界数据已纳入管辖权移交（Transfers of Jurisdiction）情况，因此已移交至其他联邦机构（包括哥伦比亚特区政府）的土地不会被标记为NPS所有土地。NPS对已移交的土地不再拥有权限、权益或管辖权。尽管其法律机制与出售或处置不同，但功能结果一致：该土地不再属于国家公园管理局所有。 此边界标识的是负责管理该土地的NPS单元，而非NPS收购该土地时所依据的法定单元。这可让用户明确哪个NPS单元负责管理设施、维护资源，哪个NPS.gov网站提供相关信息，以及哪位主管是该土地的管护责任人。 本数据集可在NPS数据存储库中获取，该存储库隶属于综合资源管理应用（Integrated Resource Management Applications, IRMA）门户下的「公园管理（管辖权）边界，国家首都辖区NPS」（IRMA ID 2305168）。其也可在IRMA门户的「国家首都辖区国家公园管理局区域数据集（空间基础数据）」中找到链接（IRMA ID 2305197）。 土地资源管理处负责管理与NPS土地收购及不动产活动相关的边界数据。该部门发布并维护多个被认定为权威的NPS边界相关数据集，这些数据集所提供的信息与本数据集有所不同。在选择数据集时，请牢记本数据的预期用途。 如需查询法定单元边界，请参阅国家公园管理局土地资源管理处的「地块与边界服务」要素图层（feature layer）。该数据集包含三个图层：1. 法定边界（nps_boundary）：指NPS无需额外立法即可收购的土地范围，此类边界包含NPS尚未所有的土地，按法定单元进行融合；2. 法定边界质心（nps_boundary_centroids）：由法定边界自动生成的点要素；3. 地块边界（nps_tracts）：代表构成法定边界的单个地块（类似宗地parcels）的多边形，此类边界可标识土地状态，但无法体现管辖权移交情况。 如需查询收费边界，请参阅NPS收费边界要素图层。该图层是nps_tracts图层中标记为"NPS FEE"的地块的集合，未纳入管辖权移交情况，因此包含哥伦比亚特区内不属于NPS的土地。