Name: BLM AK Survey System
Display Field: SURVSYSID
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: This data represents the GIS Version of the Public Land Survey System including both rectangular and non-rectangular survey data. The rectangular survey data are a reference system for land tenure based upon meridian, township/range, section, section subdivision and government lots. The non-rectangular survey data represent surveys that were largely performed to protect and/or convey title on specific parcels of land such as mineral surveys and tracts. The data are largely complete in reference to the rectangular survey data at the level of first division. However, the data varies in terms of granularity of its spatial representation as well as its content below the first division. Therefore, depending upon the data source and steward, accurate subdivision of the rectangular data may not be available below the first division and the non-rectangular minerals surveys may not be present. At times, the complexity of surveys rendered the collection of data cost prohibitive such as in areas characterized by numerous, overlapping mineral surveys. In these situations, the data were often not abstracted or were only partially abstracted and incorporated into the data set. These PLSS data were compiled from a broad spectrum or sources including federal, county, and private survey records such as field notes and plats as well as map sources such as USGS 7 ½ minute quadrangles. The metadata in each data set describes the production methods for the data content. This data is optimized for data publication and sharing rather than for specific "production" or operation and maintenance. A complete PLSS data set includes the following: PLSS Townships, First Divisions and Second Divisions (the hierarchical break down of the PLSS Rectangular surveys) PLSS Special surveys (non-rectangular components of the PLSS) Meandered Water, Corners, Metadata at a Glance (which identified last revised date and data steward) and Conflicted Areas (known areas of gaps or overlaps or inconsistencies). The Entity-Attribute section of this metadata describes these components in greater detail. The second division of the PLSS is quarter, quarter-quarter, sixteenth or government lot division of the PLSS. The second and third divisions are combined into this feature class as an intentional de-normalization of the PLSS hierarchical data. The polygons in this feature class represent the smallest division to the sixteenth that has been defined for the first division. For example In some cases sections have only been divided to the quarter. Divisions below the sixteenth are in the Special Survey or Parcel Feature Class. A Survey System Description is a named or numbered area of land that can be identified by a type and a designator. The survey system is generally a simultaneous conveyance that defines an area of land within which there is a consistent method of land description. These areas are typically non-federally managed lands. The special surveys polygons define the non-plss system areas for federally managed lands. The first, second and third division attributes are provied if needed for an application. These attributes are not needed if the intent is to track plats and subdivision or other survey systems only.
Copyright Text: Bureau of Land Management (BLM), Alaska State Office
Default Visibility: false
MaxRecordCount: 2000
Supported Query Formats: JSON, geoJSON, PBF
Min Scale: 3000000
Max Scale: 0
Supports Advanced Queries: true
Supports Statistics: true
Has Labels: false
Can Modify Layer: true
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Use Standardized Queries: true
Supports Datum Transformation: true
Extent:
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Spatial Reference: 4269
(4269)
Drawing Info:
Renderer:
Simple Renderer:
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Outline:
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Labeling Info:
Advanced Query Capabilities:
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HasZ: false
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HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Type ID Field: null
Fields:
-
OBJECTID
(
type: esriFieldTypeOID, alias: OBJECTID
)
-
SURVSYSID
(
type: esriFieldTypeString, alias: Survey System ID, length: 50
)
-
SURVSYSTYPE
(
type: esriFieldTypeString, alias: Survey System Type, length: 50
)
-
SURVSYSNM
(
type: esriFieldTypeString, alias: Survey System Name, length: 200
)
-
SURSYSCODE
(
type: esriFieldTypeString, alias: Survey System Code, length: 50
)
-
SURSYSNOTE
(
type: esriFieldTypeString, alias: Survey System Note, length: 50
)
-
FIRSTDIVID
(
type: esriFieldTypeString, alias: Surv Sys First Divison ID, length: 50
)
-
FIRSTDIVTYPE
(
type: esriFieldTypeString, alias: Surv Sys First Division Type, length: 50
)
-
FIRSTDIVNM
(
type: esriFieldTypeString, alias: Surv Sys First Division Name, length: 50
)
-
SCNDIVID
(
type: esriFieldTypeString, alias: Surv Sys Second Divison ID, length: 50
)
-
SCNDIVTYPE
(
type: esriFieldTypeString, alias: Surv Sys Second Division Type, length: 50
)
-
SCNDIVNM
(
type: esriFieldTypeString, alias: Surv Sys Second Division Name, length: 50
)
-
THRDIVID
(
type: esriFieldTypeString, alias: Surv Sys Third Div ID, length: 50
)
-
THRDIVNM
(
type: esriFieldTypeString, alias: Surv Sys Third Div Name, length: 50
)
-
THRDIVTYPE
(
type: esriFieldTypeString, alias: Surv Sys Third Div Type, length: 50
)
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(
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Shape.STLength()
(
type: esriFieldTypeDouble, alias: Shape.STLength()
)
-
CURRENT_TO_DATE
(
type: esriFieldTypeDate, alias: Current to Date, length: 8
)
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