Name: Nowitna WSR - Centerline

Display Field: WSR_Name

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: This feature class depicts the centerlines of the main and secondary channels of Nowitna WSR + imagery metadata. The lines contained in this feature class were created from the polygon feature class of the left and right banks of the rivers (feature class name: Nowitna_Version_2_a_AK_WSR_ordinary_high_water), which itself was derived from the ESRI World Imagery online image service at the following URL:http://services.arcgisonline.com/arcgis/rest/services/World_Imagery/MapServerThe centerline of the main channels were created using the "Create Centerlines" geoprocessing tool in ArcGIS Pro. The centerlines of the secondary channels were manually digitized on-screen while zoomed in to a scale of 1:3,000. Digitizing was performed by Scott McGee, Cartographer, USFWS Alaska Region Division of Realty.This feature class is Step 2 of 2 in the process that was used to derive centerlines of the main and secondary river channels of Nowitna WSR. The processing order is outlined below:Step 1: Version 2g - centerlines of main and secondary river channelsStep 2: Version 2h - centerlines of main and secondary river channels with imagery metadata added

Copyright Text: U.S. Fish & Wildlife Service, Alaska Region Division of Realty, Anchorage, Alaska.

Min. Scale: 0

Max. Scale: 0

Default Visibility: true

Max Record Count: 2000

Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -32305.3727000002
YMin: 1553313.2779
XMax: 19455.8513999991
YMax: 1662136.4459
Spatial Reference: 102006 (3338)

Drawing Info:

{"renderer":{"type":"simple","symbol":{"type":"esriSLS","style":"esriSLSSolid","color":[0,77,168,255],"width":1}},"scaleSymbols":true,"transparency":0,"labelingInfo":null}

HasZ: false

HasM: false

Time Info:

Start Time Field: null
End Time Field: null
Track ID Field: null
Time Extent: null

Time Reference: UTC
Time Interval: 0
Time Interval Units:
Has Live Data: false
Export Options: null

Has Attachments: false

Has Geometry Properties: true

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Object ID Field: OBJECTID

Unique ID Field:

Name : OBJECTID

IsSystemMaintained : True

Global ID Field:

Type ID Field:

Fields:

• OBJECTID (type: esriFieldTypeOID, alias: OBJECTID, SQL Type: sqlTypeOther, length: 0, nullable: false, editable: false)
• Refuge (type: esriFieldTypeString, alias: Refuge, SQL Type: sqlTypeOther, length: 30, nullable: true, editable: true)
• WSR_Name (type: esriFieldTypeString, alias: WSR Name, SQL Type: sqlTypeOther, length: 100, nullable: true, editable: true)
• River_Name (type: esriFieldTypeString, alias: River Name, SQL Type: sqlTypeOther, length: 40, nullable: true, editable: true)
• Channel (type: esriFieldTypeString, alias: Channel, SQL Type: sqlTypeOther, length: 30, nullable: true, editable: true)
• Length_miles (type: esriFieldTypeDouble, alias: Length (miles), SQL Type: sqlTypeOther, nullable: true, editable: true)
• Date_Created (type: esriFieldTypeDate, alias: Date Created, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: true)
• Created_By (type: esriFieldTypeString, alias: Created By, SQL Type: sqlTypeOther, length: 300, nullable: true, editable: true)
• Data_Source (type: esriFieldTypeString, alias: Data Source, SQL Type: sqlTypeOther, length: 500, nullable: true, editable: true)
• Data_Source_Date (type: esriFieldTypeDate, alias: Data Source Date, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: true)
• Data_Source_Resolution_m (type: esriFieldTypeDouble, alias: Data Source Spatial Resolution (meters), SQL Type: sqlTypeOther, nullable: true, editable: true)
• Comments (type: esriFieldTypeString, alias: Comments, SQL Type: sqlTypeOther, length: 500, nullable: true, editable: true)
• SRC_ACC (type: esriFieldTypeDouble, alias: ACCURACY (M), SQL Type: sqlTypeOther, nullable: true, editable: true)
• SRC_DESC (type: esriFieldTypeString, alias: DESCRIPTION, SQL Type: sqlTypeOther, length: 25, nullable: true, editable: true)
• NICE_NAME (type: esriFieldTypeString, alias: SOURCE_INFO, SQL Type: sqlTypeOther, length: 50, nullable: true, editable: true)
• NICE_DESC (type: esriFieldTypeString, alias: SOURCE, SQL Type: sqlTypeOther, length: 25, nullable: true, editable: true)
• CreationDate (type: esriFieldTypeDate, alias: CreationDate, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: false)
• Creator (type: esriFieldTypeString, alias: Creator, SQL Type: sqlTypeOther, length: 128, nullable: true, editable: false)
• EditDate (type: esriFieldTypeDate, alias: EditDate, SQL Type: sqlTypeOther, length: 8, nullable: true, editable: false)
• Editor (type: esriFieldTypeString, alias: Editor, SQL Type: sqlTypeOther, length: 128, nullable: true, editable: false)
• Shape__Length (type: esriFieldTypeDouble, alias: Shape__Length, SQL Type: sqlTypeDouble, nullable: true, editable: false)

Templates:

Name: Nowitna WSR - Centerline
Description:
Drawing Tool: esriFeatureEditToolLine
Prototype:

Attributes:

Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 10/7/2026 12:09:51 AM

Schema Last Edit Date: 10/7/2026 12:09:51 AM

Data Last Edit Date: 10/7/2026 12:09:27 AM

Supported Operations:   Query   Query Pivot   Query Top Features   Query Analytic   Query Bins   Generate Renderer   Validate SQL   Get Estimates   ConvertFormat