Federal and Indian Lands: Map Layer Description File

This map layer portrays the federally and Indian administered lands of the United States that have any area equal to or greater than 640 acres. The government agencies that administer these lands include the Bureau of Indian Affairs, the Bureau of Reclamation, the Bureau of Land Management, the Department of Defense, the Forest Service, the Fish and Wildlife Service, the National Park Service, and the Tennessee Valley Authority.

This map layer was produced by the U.S. Geological Survey. It does not include linear (long, relatively narrow) features. Linear features are available in a separate map layer that portrays the locations of parkways and scenic rivers. This Federal and Indian Lands map layer also does not include any federally and Indian held land that has an areal extent smaller than 640 acres (though a separate map layer for these lands is in the works).

• Identification Information
• Data Quality Information
• Spatial Data Organization Information
• Spatial Reference Information
• Entity and Attribute Information
• Distribution Information
• Metadata Reference Information

Identification Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1997

Title: Federal and Indian Land Features of the U.S. (polygon)

Publication_Information:

Publication_Place: Reston, Virginia

Publisher: U.S. Geological Survey

 

Description:

Abstract:

This data set is an ARC/INFO shapefile that portrays the federally and Indian owned land polygon features of the United States. The data set was created by extracting federal and Indian land polygon features from the individual 1:2,000,000-scale state boundary DLG files produced by the U.S. Geological Survey. These files were then paneled into a single coverage.

Purpose:

These data were created to serve as a layer for the National Atlas of the United States of America.

Supplemental_Information:

Revisions: 1) 3/22/98 - Corrected topological problems along state lines, corrected coding errors (Lake Tahoe), and added Escalante national monument. State attribute codes were removed. Fort Frederica, GA was deleted because it was below the minimum mapping area of 640 acres.

 

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1972

Ending_Date: 1998

Currentness_Reference: publication date

 

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

 

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 172

East_Bounding_Coordinate: -66

North_Bounding_Coordinate: 72

South_Bounding_Coordinate: 18

 

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Federal Lands

Theme_Keyword: Indian Lands

Theme_Keyword: polygon

Place:

Place_Keyword_Thesaurus:

U.S. Department of Commerce, 1995, Countries, dependencies, areas of special sovereignty, and their principal administrative divisions (Federal Information Processing Standard 10-4): Washington, D.C., National Institute of Standards and Technology.

Place_Keyword: United States

 

Access_Constraints: None

Use_Constraints:

None. Acknowledgment of the National Atlas of the United States of America would be appreciated in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Steve Kambly

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: 561 National Center

City: Reston

State_or_Province: VA

Postal_Code: 20192

Contact_Voice_Telephone: 703-648-5094

Contact_Electronic_Mail_Address: skambly@usgs.gov

 

Native_Data_Set_Environment:

This data are presently stored in ESRI ARC/INFO version 7.1.1 shapefile format.

Data Quality Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Accuracy at the DLG level was tested by one or more of the following methods: - manual comparison of the source with hard copy plots. - symbolized display of the digital line graph on an interactive computer graphic system. - Selected attributes that could not be visually verified on plots or on screen were interactively queried and verified on screen. As the DLG files were directly converted to ARC/INFO coverages, attributes have not been checked in the ARC/INFO format.

 

Logical_Consistency_Report:

Using ESRI's ARC/INFO GIS software, the data set was checked for label errors, dangling nodes, and intersections. Polygon topology was built for the data set using the "BUILD" command.

Completeness_Report:

Data completeness generally reflects the content of the original DLG file.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

In DLG format, files underwent comparison to a graphic source or image source that was used as control to assess digital positional accuracy. During conversion to ARC/INFO coverage format and during the append process to panel the states together, node snapping and fuzzy tolerances may have caused minimal positional shifts.

 

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1995

Title: 1:2,000,000-scale Digital Line Graph Data

Publication_Information:

Publication_Place: Reston, VA

Publisher: U.S. Geological Survey

Source_Scale_Denominator: 2000000

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1970

Ending_Date: 1995

Source_Currentness_Reference: publication date

Source_Contribution: Spatial and attribute information

Source_Citation_Abbreviation: nn2milbd.do where nn = state abbreviation

Process_Step:

Process_Description:

This file was originally digitized by the National Mapping Division based on the sectional maps contained in 'The National Atlas of the United States of America' published by the USGS in 1970. The sectional maps were updated during 1978-1981 and digitized in the early 1980's. The data were updated in 1995 using 1:1,000,000-scale and 1:2,000,000-scale BLM state base maps. These data were published on CD-ROM in 1995. Using ARC/INFO software, the DLG optional format files were converted to ARC/INFO coverages using the DLGARC command. Only federal and Indian land polygons and attribute information were extracted for inclusion. The sections were then paneled together using the ARC/INFO command APPEND. "Slivers" created during the append process were identified and deleted using the ELIMINATE command. The attribute AGBUR was added for plotting purposed. The codes used are: BIA (Bureau of Indian Affairs), BOR (Bureau of Reclamation), BLM (Bureau of Land Management), DOD (Dept. of Defense), FS (Forest Service), FWS (Fish and Wildlife Service), NPS (National Park Service), TVA (Tennessee Valley Authority), and OTHER. In 1998, topological errors introduced when the state files were paneled were corrected. Grand Staircase-Escalante National Monument was added. Coding of Lake Tahoe was corrected, and Fort Frederica, GA was deleted because it was smaller than the minimum area of 640 acres. The data were converted to shapefile format for use in National Atlas applications and for distribution to the public.

Source_Used_Citation_Abbreviation: nn2milbd.do where nn = state abbreviation

Process_Date: 1997

Spatial Data Organization Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Ring composed of chains

Point_and_Vector_Object_Count: 50763

SDTS_Point_and_Vector_Object_Type: complete chain

Point_and_Vector_Object_Count: 91840

Spatial Reference Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000278

Longitude_Resolution: 0.000278

Geographic_Coordinate_Units: Decimal Degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum 1983

Ellipsoid_Name: GRS1980

Semi-major_Axis: 6378137

Denominator_of_Flattening_Ratio: 298.257222

Entity and Attribute Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: FEDLANP020.PAT

Entity_Type_Definition: Attribute table of FEDLANP020 polygons.

Entity_Type_Definition_Source: ARC/INFO

Attribute:

Attribute_Label: AREA

Attribute_Definition: Area of poly/region in square coverage units

Attribute_Definition_Source: software computed

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Maximum: positive real number

Range_Domain_Minimum: positive real number

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: PERIMETER

Attribute_Definition: Perimeter of poly/region in coverage units

Attribute_Definition_Source: software computed

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: positive real number

Range_Domain_Maximum: positive real number

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: FEDLANP020#

Attribute_Definition: Polygon internal identification number

Attribute_Definition_Source: software computed

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1

Range_Domain_Maximum: positive integer

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: FEDLANP020-ID

Attribute_Definition: Polygon user identification number

Attribute_Definition_Source: software computed

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: positive integer

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: FEATURE1

Attribute_Definition: Primary Federal agency/bureau

Attribute_Definition_Source: US GeoData Data Users Guide 3

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Boundary layer attribute codes

Codeset_Source: US GeoData Data Users Guide 3

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: FEATURE2

Attribute_Definition: Secondary Federal agency/bureau

Attribute_Definition_Source: US GeoData Data Users Guide 3

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Boundary layer attribute codes

Codeset_Source: US GeoData Data Users Guide 3

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: FEATURE3

Attribute_Definition: Tertiary Federal agency/bureau

Attribute_Definition_Source: US GeoData Data Users Guide 3

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Boundary layer attribute codes

Codeset_Source: US GeoData Data Users Guide 3

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: AGBUR

Attribute_Definition: Agency code

Attribute_Definition_Source: none

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Agency/Bureau codes

Codeset_Source: none (See Process_Description)

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: STATE_FIPS

Attribute_Definition: 2-digit state FIPS code

Attribute_Definition_Source: FIPS PUB 5-2

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name:

Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas.

Codeset_Source: FIPS PUB 5-2

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: NAME1

Attribute_Definition: Primary name of the federal or Indian land feature

Attribute_Definition_Source: US GeoData Data Users Guide 3

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Boundary layer attribute codes

Codeset_Source: US GeoData Data Users Guide 3

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: NAME2

Attribute_Definition: Secondary name of the federal or Indian land feature

Attribute_Definition_Source: US GeoData Data Users Guide 3

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Boundary layer attribute codes

Codeset_Source: US GeoData Data Users Guide 3

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: NAME3

Attribute_Definition: Tertiary name of the federalor Indian  land feature

Attribute_Definition_Source: US GeoData Data Users Guide 3

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name: Boundary layer attribute codes

Codeset_Source: US GeoData Data Users Guide 3

Attribute_Measurement_Frequency: None planned

Attribute:

Attribute_Label: STATES

Attribute_Definition: Name of state

Attribute_Definition_Source: FIPS PUB 5-2

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name:

Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas.

Codeset_Source: FIPS PUB 5-2

Attribute_Measurement_Frequency: None planned

 

Overview_Description:

Entity_and_Attribute_Overview:

The polygon attribute table:

Column	Item Name	Width	Output	Type	N. Dec.
1	AREA	4	12	F	3
5	PERIMETER	4	12	F	3
9	FEDLP020#	4	5	B	-
13	FEDLP020-ID	4	5	B	-
17	FEATURE1	80	80	C	-
97	FEATURE2	80	80	C	-
177	FEATURE3	80	80	C	-
257	AGBUR	7	7	C	-
264	STATE_FIPS	2	2	C	-
266	NAME1	80	80	C	-
346	NAME2	80	80	C	-
426	NAME3	80	80	C	-
506	STATES	50	50	C	-

Entity_and_Attribute_Detail_Citation: none

Distribution Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Bruce Wright

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing address

Address: 521 National Center

City: Reston

State_or_Province: VA

Postal_Code: 20192

Contact_Voice_Telephone: 703-648-4528

Contact_Electronic_Mail_Address: bwright@usgs.gov

Distribution_Liability: None

Metadata Reference Information:

Metadata_Date: 19980520

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Bruce Wright

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical address

Address: 521 National Center

City: Reston

State_or_Province: VA

Postal_Code: 20192

Contact_Voice_Telephone: 703-648-4528

Contact_Electronic_Mail_Address: bwright@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: 19940608

Metadata_Security_Information:

Metadata_Security_Classification_System: None

Metadata_Security_Classification: Unclassified

Metadata_Security_Handling_Description: None

 

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