Alaska National Wildlife Refuge Land Status

Overview This feature service provides a statewide land status and estate inventory for National Wildlife Refuges in Alaska. It compiles surface and subsurface ownership information used by the U.S. Fish and Wildlife Service, Region 7, Division of Realty to support refuge land records, conveyance tracking, and estate management. Feature Layers Surface estate layers describe surface ownership and status across refuge lands, including parcels managed by USFWS, other federal agencies, selected lands, and patented lands. Subsurface estate layers document subsurface ownership and status for the same refuge system, supporting management of mineral and related sbsurface estate interests. Focused views provide filtered subsets of the land estate records for USFWS, other federal ownership, patented lands, and selected lands, helping users work with specific ownership categories. Core Content Refuge name, refuge unit, and administrative management information Conveyance and case tracking details used in land status records Ownership, estate status, and source documentation references Survey and tract references, acreage values, and notes for parcel-level context Data source and document links that support land status interpretation Geographic Coverage The service covers National Wildlife Refuges in Alaska and includes refuge, administrative site, and related estate records across the state. Use Cases Reviewing refuge land ownership and estate status Supporting realty, conveyance, and boundary management workflows Finding parcels by refuge, ownership category, or estate type Linking land status records to supporting plats, deeds, and conveyance documents Source and Currency The information is compiled by USFWS Region 7, Division of Realty, with Bureau of Land Management Master Title Plats as a primary source. The service is updated as-needed, depending on the frequency of land status record changes. Typical update frequency is generally one to two times per month. License and Citation Use of the data is subject to the U.S. Fish and Wildlife Service Data Distribution Liability Statement. Recommended citation: U.S. Fish and Wildlife Service, Region 7, Division of Realty.概述 本要素服务提供阿拉斯加州全国野生动物保护区（National Wildlife Refuge）的全州土地权属与地产清册。其整合了美国鱼类及野生动物管理局（U.S. Fish and Wildlife Service，USFWS）第七区域局不动产司所需的地表与地下权属信息，用于支撑保护区土地记录、权属流转追踪及地产管理工作。 要素图层 地表权属图层用于描述保护区范围内的地表权属与状态，涵盖由美国鱼类及野生动物管理局、其他联邦机构管理的地块，以及选定地块与已确权土地（patented lands）。地下权属图层则记录该保护区体系内的地下权属与状态，辅助矿产及相关地下地产权益的管理。聚焦视图可筛选出针对美国鱼类及野生动物管理局、其他联邦机构所有、已确权土地及选定地块的权属记录子集，方便用户针对特定权属类别开展工作。 核心内容 包括保护区名称、保护区管理单元及行政管理信息；土地权属记录中所用的权属流转与案件追踪详情；权属、地产状态及源文档引用；地块级上下文所需的测绘与宗地引用、面积数值及备注信息；以及辅助土地权属解读的数据源与文档链接。 地理覆盖范围 本服务覆盖阿拉斯加州的全国野生动物保护区，涵盖全州范围内的保护区、管理站点及相关地产记录。 应用场景 可用于审查保护区土地权属与地产状态；支撑不动产、权属流转及边界管理工作流程；按保护区、权属类别或地产类型检索地块；将土地权属记录与配套宗地图、契约及权属流转文档关联。 数据源与更新时效性 本数据集由美国鱼类及野生动物管理局第七区域局不动产司编制，核心数据源为美国土地管理局（Bureau of Land Management，BLM）的主权属宗地图。本服务根据土地权属记录的变更频率按需更新，典型更新周期为每月1至2次。 许可与引用规范 数据使用需遵守美国鱼类及野生动物管理局的数据发布免责声明。推荐引用格式：美国鱼类及野生动物管理局第七区域局不动产司。