# YukonFlatsNWR

TypegeoJSON

TagsYukon Flats, National Wildlife Refuge, NWR, USFWS, FWS, boundary, generalized, unofficial

### Summary

    This polygon depicts simplified boundaries of the Yukon Flats National Wildlife Refuge in Alaska for quick reference.

### Description

    This polygon feature was generalized from U.S. Fish and Wildlife Service cadastral data, specifically the Approved Acquisition Boundaries (available at https://ecos.fws.gov/ServCat/Reference/Profile/131755). A subset of this national data set was first exported to include only features within the Alaska Region. This new feature class was then projected to a local coordinate system, NAD83 Alaska Albers. Polygons representing Yukon Flats NWR were exported to a new feature class, which was further simplified using Esri's Generalize tool, with a simplification tolerance of 425 meters. The resulting polygon feature has 483 vertices. Prior to exporting as geoJSON, the feature class was projected from NAD83 Alaska Albers to WGS 84.This feature class depicts simplified boundaries of the Yukon Flats National Wildlife Refuge in Alaska and warrants the following limitations: 1) must not be used for official or legal  purposes such as acreage computations or the field location of Refuge boundaries. 2) intended to be used only for small-scale (<1:5,000,000) depiction of the Refuge boundaries.If you require the official, full-resolution boundaries of the National Wildlife Refuges in Alaska, you may download them at https://www.fws.gov/r7/nwr/Realty/data/LandMappers/Public/Help/HTML/NationalWildlifeRefugeandWildern.html

### Credits

    USFWS, Alaska Region

### Use limitations

    For small-scale, general use/depiction of Refuge boundaries. Do not use for official or legal purposes. Do not use for legal or official acreage computations.

### Extent

West | -150.041835 | East | -141.981650
North | 67.461356 | South | 65.715094

### Scale Range

Maximum (zoomed in) | 1:625,000
Minimum (zoomed out) | 1:150,000,000

### Topics and Keywords ▼►

Content typeDownloadable Data

Export to FGDC CSDGM XML format as Resource DescriptionNo

### Citation ▼►

TitleYukonFlatsNWR
Publication date2021-05-29 00:00:00
Presentation formats ⇔digital map

### Citation Contacts ▼►

Responsible party - originator

Individual's nameHannah White
Organization's nameU.S. Fish and Wildlife Service
Contact's positionData Management Technician
Contact information
▼►

Address

Type
e-mail address hannah_white@fws.gov

### Resource Details ▼►

Dataset languages ⇔English (UNITED STATES)
Dataset character setutf8 - 8 bit UCS Transfer Format
Statuscompleted
Spatial representation type ⇔vector
Processing environment ⇔Microsoft Windows 10 Version 10.0 (Build 19042) ; Esri ArcGIS 12.5.0.22081
Credits

      USFWS, Alaska Region

ArcGIS item properties

Name ⇔YukonFlatsNWR
Size ⇔0.000
Location ⇔file://\\MSI\D$\Downloads\AKrefuge_geoJSON\AKrefuge_geoJSON.gdb

Access protocol ⇔Local Area Network

### Extents ▼►

Extent

Geographic extent

Bounding rectangle

Extent type
Extent used for searching
West longitude-150.041835
East longitude-141.981650
South latitude65.715094
North latitude67.461356
Extent contains the resourceYes

Extent in the item's coordinate system

West longitude ⇔-150.041835
East longitude ⇔-141.981650
South latitude ⇔65.715094
North latitude ⇔67.461356
Extent contains the resource ⇔Yes

### Resource Points of Contact ▼►

Point of contact - originator

Individual's nameHannah White
Organization's nameU.S. Fish and Wildlife Service
Contact's positionData Management Technician
Contact information
▼►

Address

Type
e-mail address hannah_white@fws.gov

### Resource Maintenance ▼►

Resource maintenance

Update frequencynot planned

### Resource Constraints ▼►

Constraints

Limitations of use

      For small-scale, general use/depiction of Refuge boundaries. Do not use for official or legal purposes. Do not use for legal or official acreage computations.

### Spatial Reference ▼►

ArcGIS coordinate system

Type ⇔Geographic
Geographic coordinate reference ⇔GCS_WGS_1984
Coordinate reference details ⇔

Geographic coordinate system

Well-known identifier4326
X origin-400
Y origin-400
XY scale999999999.99999988
Z origin-100000
Z scale10000
M origin-100000
M scale10000
XY tolerance8.983152841195215e-09
Z tolerance0.001
M tolerance0.001
High precisiontrue
Left longitude-180
Latest well-known identifier4326
Well-known textGEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG",4326]]

Reference system identifier

Value ⇔4326
Codespace ⇔EPSG
Version ⇔6.14(3.0.1)

### Spatial Data Properties ▼►

Vector
▼►

Level of topology for this dataset ⇔geometry only
Geometric objects

Feature class nameYukonFlatsNWR
Object type ⇔composite
Object count ⇔1

ArcGIS Feature Class Properties
▼►

Feature class nameYukonFlatsNWR

Feature type ⇔Simple
Geometry type ⇔Polygon
Has topology ⇔FALSE
Feature count ⇔1
Spatial index ⇔TRUE
Linear referencing ⇔FALSE

### Data Quality ▼►

Scope of quality information
▼►

Resource leveldataset

### Distribution ▼►

Distribution format

NamegeoJSON

### Fields ▼►

Details for object YukonFlatsNWR
▼►

Type ⇔Feature Class
Row count1
Definition

      polygon

Definition source

      Esri

Field ID
▼►

Data typeNumeric
Width2
Alias ⇔ID
Precision ⇔0
Scale ⇔0
Field description

      Arbitrary unique identifier for import of refuge boundary into mdEditor (an FWS-approved metadata tool).

Description source

      USFWS

Field name
▼►

Data typeText
Width255
Alias ⇔name
Precision ⇔0
Scale ⇔0
Field description

      Refuge name.

Description source

      USFWS

Field description
▼►

Data typeText
Width255
Alias ⇔description
Precision ⇔0
Scale ⇔0
Field description

      Specification of which refuge(s) the feature describes.

Description source

      USFWS

### Metadata Details ▼►

Metadata language ⇔English (UNITED STATES)
Metadata character set ⇔utf8 - 8 bit UCS Transfer Format
Scope of the data described by the metadata ⇔dataset
Scope name ⇔dataset
Last update2021-05-29
ArcGIS metadata properties

Metadata formatArcGIS 1.0
Standard or profile used to edit metadataFGDC
Created in ArcGIS for the item2021-05-09 22:09:16
Last modified in ArcGIS for the item2021-05-30 25:72:10
Automatic updates

Have been performedYes
Last update2021-05-30 02:45:38

### Metadata Contacts ▼►

Metadata contact - originator

Individual's nameHannah White
Organization's nameU.S. Fish and Wildlife Service
Contact's positionData Management Technician
Contact information
▼►

Phone

VoiceN/A

Address

Typephysical
CityAnchorage
Administrative areaAlaska
Postal code99503
CountryUS
e-mail address hannah_white@fws.gov

### Metadata Maintenance ▼►

Maintenance

Update frequencynot planned