Surveys and Plats

The surveys and plats feature layer includes information related to the following topics. Control Point - The control point dataset represents corner points that have been observed by IDL staff or a licensed surveyor. Corners are points on the surface of the earth, determined by the surveying process, which defines an extremity on a boundary of the public lands. Points are represented by a type to determine the source of the corner. Control points have been gathered from various sources. These points are used to adjust the Parcel Fabric. This allows for a more accurate GIS representation of ground conditions. Survey and Plat Line - A record of survey is a detailed map that documents and identifies the physical land boundaries or property lines for a specific parcel of land. This feature class represents the parcel lines documented in a record of survey. These records of surveys can include subdivision plats and surveys performed by federal entities. The metes and bounds information is stored as attribute values. Subdivision - "Subdivision" means the division of a lot, tract, or parcel of land into two or more lots, plats, sites, or other divisions of land for the purpose, whether immediate or future, of sale or of building development. It includes resubdivision and, when appropriate to the context, relates to the process of subdividing or to the land or territory subdivided. Lots and Blocks - A lot is an individual piece of land which is intended to be conveyed in its entirety to a buyer. A block is generally a group of contiguous lots bounded by streets, such as a city block. Record of Surveys - A record of survey is a detailed map that documents and identifies the physical land boundaries or property lines for a specific parcel of land. This feature class represents the parcels documented in a record of survey. These records of surveys do not include subdivision plats, lots, or blocks. State Surface Ownership - This feature class contains the surface ownership for endowment lands managed by the Idaho Department of Lands. There is also data for other state agencies, but this data is not complete. PLSS Township - Townships are normally a square approximately six miles on a side with cardinal boundaries conforming to meridians and parallels, containing 36 sections of one square mile each. PLSS Section - The first set of divisions for a PLSS Township. Typically 640 acres or 1 square mile. PLSS Subsection - Is a quarter, quarter-quarter, sixteenth, or government lot division of the PLSS.测量与地籍图要素图层（Surveys and Plats Feature Layer）包含以下主题相关的信息： 1. 控制点（Control Point）：控制点数据集代表经IDL（爱达荷州土地局，Idaho Department of Lands）工作人员或持证测量员观测得到的角点。此类角点为地表点位，通过测量流程确定，用于界定公共土地边界的端点。点位通过类型字段标识以明确角点的来源渠道。控制点数据汇集自多类不同来源，用于调整宗地要素集（Parcel Fabric），以此实现地面状况的高精度地理信息系统（Geographic Information System, GIS）可视化呈现。 2. 测量与地籍图线要素（Survey and Plat Line）："测量记录"是详细记录并标识特定宗地实际土地边界或权属界线的专业地图。该要素类代表测量记录中记载的宗地界线，此类测量记录可涵盖联邦机构编制的细分地籍图及测量成果。界址与四至信息以属性字段值的形式存储。 3. 宗地细分（Subdivision）："宗地细分"指将一块地块、土地片或宗地划分为2个或多个地块、地籍图、场地或其他土地单元，无论用于即时或未来的销售或建筑开发。该术语包含再细分情形，且在语境适配时，可指代细分流程或被细分的土地/地块。 4. 地块与街区（Lots and Blocks）：地块指拟完整转让给买方的单宗土地；街区通常指由街道围合的连片地块集合，如城市街区。 5. 测量记录（Record of Surveys）："测量记录"是详细记录并标识特定宗地实际土地边界或权属界线的专业地图。该要素类代表测量记录中记载的宗地，此类测量记录不包含细分地籍图、地块及街区。 6. 国家地表所有权（State Surface Ownership）：该要素类包含由爱达荷州土地局（Idaho Department of Lands）管理的捐赠土地的地表所有权信息，同时包含其他州级机构的相关数据，但此类数据并不完整。 7. 公共土地测量系统镇区（PLSS Township, Public Land Survey System Township）：镇区通常为边长约6英里的方形区域，其主边界符合子午线与纬线，包含36个面积为1平方英里的区段。 8. 公共土地测量系统区段（PLSS Section, Public Land Survey System Section）：公共土地测量系统镇区的首批划分单元，通常面积为640英亩或1平方英里。 9. 公共土地测量系统子区块（PLSS Subsection, Public Land Survey System Subsection）：指公共土地测量系统镇区的四分之一区、四分之一的四分之一区、十六分之一区或政府地块划分单元。