BLM
-Wyoming - Alternate Source Metadata
Metadata:
- Identification_Information:
-
- Citation:
-
- Citation_Information:
-
- Originator:
U.S. Bureau of Land Management (BLM), Wyoming Office.
- Publication_Date:
20020930
- Title:
lsi:sde.wy_alt
- Geospatial_Data_Presentation_Form:
vector digital data
- Publication_Information:
-
- Publication_Place:
Cheyenne, Wyoming
- Publisher:
U.S. Bureau of Land Management
- Online_Linkage:
-
- Description:
-
- Abstract:
- The
locations of Public Land Survey System (PLSS) corners, as represented
in geographic coordinate pairs, were derived from a variety of source
documents, which include U.S. General Land Office and BLM survey plats/notes,
as well as survey data obtained from other U.S. Government agencies,
private sector survey firms, and local governments. The attributes
assigned to PLSS polygons were taken from the BLM's Legal Land Description
(LLD) data set, contained within the Legacy Rehost for the year 2000
(LR2000) automated records system. The coordinate data was produced
by using control stations of known location, with varying degrees
of accuracy, from various sources which include but are not limited
to; U.S. Geological Survey (USGS) topological quadrangles and other
sources, National Geodetic Survey (NGS) and US Coast & Geodetic
Survey (USC&GS) Cooperative Base Network (CBN) control, Federal
Base Network control (FBN), and Continuous Operating Reference Stations
(CORS), and Global Positioning System (GPS) data, which is then analyzed
and adjusted in concert with official survey data for any given geographic
area. The Geographic Coordinate Data Base (GCDB) data is a useful
representation of the geometry and topology of parcels contained within
the PLSS, but its application is intended for mapping purposes only.
The GCDB data is not a substitute for a legal land survey.
- Purpose:
- The
GCDB was created to provide the BLM and its Public with a set of geographic
foundation data that would most accurately portray the locations of
PLSS corners. The GCDB is based on the best and most current survey
records available and known geographic positions of control stations
within the PLSS network. This data will provide the framework upon
which the BLM will assemble parcel boundary information for its initial
spatially referenced Land Information System (LIS), and will be instrumental
in determining where maintenance and upgrade to the PLSS is necessary.
- Time_Period_of_Content:
-
- Time_Period_Information:
-
- Range_of_Dates/Times:
-
- Beginning_Date:
18490303
- Ending_Date:
present
- Currentness_Reference:
ground condition
- Status:
-
- Progress:
In work
- Maintenance_and_Update_Frequency:
As needed
- Spatial_Domain:
-
- Bounding_Coordinates:
-
- West_Bounding_Coordinate:
-111.044836
- East_Bounding_Coordinate:
-106.121452
- North_Bounding_Coordinate:
44.952431
- South_Bounding_Coordinate:
41.002312
- Keywords:
-
- Theme:
-
- Theme_Keyword_Thesaurus:
None
- Theme_Keyword:
General Land Office
- Theme_Keyword:
GLO
- Theme_Keyword:
Bureau of Land Management
- Theme_Keyword:
BLM
- Theme_Keyword:
Public Land Survey System
- Theme_Keyword:
PLSS
- Theme_Keyword:
Geographic Coordinate Data Base
- Theme_Keyword:
GCDB
- Theme_Keyword:
National Spatial Data Infrastructure
- Theme_Keyword:
NSDI
- Theme_Keyword:
Land Survey Information System
- Theme_Keyword:
LSIS
- Access_Constraints:
None.
- Use_Constraints:
- The geographic
coordinates and their associated products are NOT legal land survey records.
The coordinates can NOT be used as a substitute for a legal land survey.
They can be used for record keeping, mapping, graphics and planning purposes
only. No warranty is made by the Bureau of Land Management for use of
the data for purposes not intended by BLM.
- Point_of_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person:
Milbert Krohn
- Contact_Organization:
BLM - Branch of Cadastral Survey
- Contact_Position:
GCDB Specialist
- Contact_Address:
-
- Address_Type:
mailing address
- Address:
5353 Yellowstone Avenue PO 1828
- City:
Cheyenne
- State_or_Province:
Wyoming
- Postal_Code:
82009-1828
- Country:
USA
- Contact_Voice_Telephone:
307- 775-6225
- Contact_Facsimile_Telephone:
307- 775-6173
- Contact_Electronic_Mail_Address:
Milbert_Krohn@blm.gov
- Native_Data_Set_Environment:
- Microsoft
Windows 2000 Version 5.1 (Build 2600) ; ESRI ArcCatalog 8.2.0.700
Top
- Data_Quality_Information:
- Attribute_Accuracy:
-
- Attribute_Accuracy_Report:
- 100%
of the data was checked for attribute accuracy by the GCDB personnel
in each of the respective BLM State Offices.
- Logical_Consistency_Report:
- Data set
is topologically structured polygon data with nodes at all intersections.
All polygons are attributed.
- Completeness_Report:
- All GCDB
spatial outputs are visually inspected for completeness to ensure that all
survey data for a given geographic area is included in the data set.
- Positional_Accuracy:
-
- Horizontal_Positional_Accuracy:
-
- Horizontal_Positional_Accuracy_Report:
- Accuracy
of the individual points contained within the GCDB were adjusted
using a succession of compass rule adjustments between the control
points followed by a least squares analysis, which examines the
geometry of PLSS parcels in relation to the coordinate values of
known locations for control points within the PLSS grid. Each individual
point carries positional reliability factors for the average of
the misclosures in the data set and the maximum misclosure in the
data set.
- Lineage:
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator:
U.S. Bureau of Land Management
- Publication_Date:
20020930
- Title:
Land Survey Information System (LSIS)
- Geospatial_Data_Presentation_Form:
Tabular Digital Data
- Publication_Information:
-
- Publication_Place:
Denver, Colorado
- Publisher:
U.S. Bureau of Land Management
- Type_of_Source_Media:
disc
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Range_of_Dates/Times:
-
- Beginning_Date:
18490303
- Ending_Date:
present
- Source_Currentness_Reference:
ground condition
- Source_Citation_Abbreviation:
BLM
- Source_Contribution:
- Survey
data in the form of official (microfilm, CD, other) survey records
for the entire history of the General Land Office (GLO) and BLM, abstracted
into a digital format.
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator:
U.S. Forest Service
- Publication_Date:
19980601
- Title:
Automated Lands Project (ALP)
- Geospatial_Data_Presentation_Form:
Tabular digital data
- Publication_Information:
-
- Publication_Place:
Washington, D.C.
- Publisher:
U.S. Forest Service
- Type_of_Source_Media:
disc
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Range_of_Dates/Times:
-
- Beginning_Date:
19980601
- Ending_Date:
present
- Source_Currentness_Reference:
ground condition
- Source_Citation_Abbreviation:
USFS
- Source_Contribution:
- Survey
and control data from the Cartographic Feature File (CFF) data set.
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator:
U.S. Geological Survey
- Publication_Date:
19890603
- Title:
USGS standard topological quadrangles
- Geospatial_Data_Presentation_Form:
Tabular Digital Data
- Publication_Information:
-
- Publication_Place:
Denver, Colorado
- Publisher:
U.S. Geological Survey
- Type_of_Source_Media:
disc
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Range_of_Dates/Times:
-
- Beginning_Date:
19060101
- Ending_Date:
present
- Source_Currentness_Reference:
ground condition
- Source_Citation_Abbreviation:
USGS
- Source_Contribution:
- Digitized
control data from standard topological quadrangle sheets.
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator:
National Geodetic Survey
- Publication_Date:
20000406
- Title:
Official Control Station Sheets
- Geospatial_Data_Presentation_Form:
Tabular Digital Data
- Publication_Information:
-
- Publication_Place:
Silver Springs, Maryland
- Publisher:
National Geodetic Survey
- Type_of_Source_Media:
disc
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Range_of_Dates/Times:
-
- Beginning_Date:
19010304
- Ending_Date:
present
- Source_Currentness_Reference:
ground condition
- Source_Citation_Abbreviation:
NGS
- Source_Contribution:
- Survey
control data from the official control station sheets (CBN, FBN, and
CORS).
- Process_Step:
-
- Process_Description:
- Compile
survey input data from the best and most current survey records.
- Source_Used_Citation_Abbreviation:
- BLM
Data Base of the Index to all official (microfilm, CD, other) BLM
Survey Records.
- Source_Used_Citation_Abbreviation:
USFS survey records
- Source_Used_Citation_Abbreviation:
- GCDB
Data Collection Attribute Definitions version 2.0, Appendix A, 2/14/1991.
Survey records used - source abbreviations.
- Process_Date:
Unknown
- Process_Step:
-
- Process_Description:
Compile listings of known locations of PLSS corners.
- Source_Used_Citation_Abbreviation:
USGS topographic quadrangles and other sources
- Source_Used_Citation_Abbreviation:
USC&GS published coordinate data.
- Source_Used_Citation_Abbreviation:
NGS published coordinate data
- Source_Used_Citation_Abbreviation:
BLM Global Positioning Data
- Source_Used_Citation_Abbreviation:
USFS Global Positioning Data
- Process_Date:
Unknown
- Process_Step:
-
- Process_Description:
- Coordinates
of control stations are entered into a control data base with associated
reliabilities.
- Process_Date:
Unknown
- Process_Step:
-
- Process_Description:
- Survey
data abstracted from survey plats, and control stations extracted
from the control database, are manually entered into the PCCS processing
software. A succession of compass rule adjustments is performed on
the lines to adjust them to the control points, followed by a least
squared analysis. The resulting coordinates are accompanied by indications
of positional reliability; the average of misclosures in the township
and the maximum misclosure in the township.
- Process_Date:
Unknown
- Process_Step:
-
- Process_Description:
- PCCS
lists all coordinates produced by the compass rule and least squares
adjustments with connectivity codes between points and compiles them
into a single file for development of final Geographic Information
System (GIS) coverages.
- Process_Date:
Unknown
- Process_Step:
-
- Process_Description:
- Section
subdivision is performed to achieve land unit detail to at least the
forty acre parcel level.
- Process_Date:
Unknown
- Process_Step:
-
- Process_Description:
- GCDB
data conversion software verifies correctness of GCDB file formats
and content.
- Process_Date:
20020403
- Process_Step:
-
- Process_Description:
- Verified
coordinate, line, and label files are converted to GIS coverages using
the topology check application. All errors in topology are flagged
for editing and correction.
- Process_Date:
20020403
- Process_Step:
-
- Process_Description:
- If
topological errors exist, editing of arc and node data, as well as
parcel labels, is performed using ArcInfo Interface (AII). Final edits
are entered into input files and the process is repeated until all
errors are corrected and a successful GIS coverage is created.
- Process_Date:
Unknown
- Process_Step:
-
- Process_Description:
- GIS
coverages are edgematched with adjoining township data sets to insure
a seamless PLSS grid is created.
- Process_Date:
Unknown
- Process_Step:
-
- Process_Description:
- Topologically
correct GIS coverages are converted to ArcInfo interchange (.e00)
files and copied to the public web site for download.
- Process_Date:
Unknown
- Process_Step:
-
- Process_Description:
Metadata imported.
- Source_Used_Citation_Abbreviation:
C:\DOCUME~1\awigle\LOCALS~1\Temp\xml153.tmp
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- Spatial_Data_Organization_Information:
-
- Direct_Spatial_Reference_Method:
Vector
- Point_and_Vector_Object_Information:
-
- SDTS_Terms_Description:
-
- SDTS_Point_and_Vector_Object_Type:
G-polygon
- Point_and_Vector_Object_Count:
112
Top
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Geographic:
-
- Latitude_Resolution:
0.000000
- Longitude_Resolution:
0.000000
- Geographic_Coordinate_Units:
Decimal degrees
- Geodetic_Model:
-
- Horizontal_Datum_Name:
North American Datum of 1927
- Ellipsoid_Name:
Clarke 1866
- Semi-major_Axis:
6378206.400000
- Denominator_of_Flattening_Ratio:
294.978698
- Vertical_Coordinate_System_Definition:
-
- Altitude_System_Definition:
-
- Altitude_Resolution:
1.000000
- Altitude_Encoding_Method:
-
Explicit elevation coordinate included with horizontal coordinates
Top
- Entity_and_Attribute_Information:
-
- Detailed_Description:
-
- Entity_Type:
-
- Entity_Type_Label:
lsi:sde.wy_alt
- Entity_Type_Definition:
Arc Attribute Table
- Entity_Type_Definition_Source:
ArcInfo
- Attribute:
-
- Attribute_Label:
objectid_1
- Attribute_Definition:
Internal feature number.
- Attribute_Definition_Source:
ESRI
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value:
-
FNODE# = Internal number of the from-node TNODE# = Internal
number of the to-node LPOLY# = Left polygon number RPOLY#
= Right polygon number LENGTH = Length of arc GCDB# =
Internal Arc ID GCDB-ID = User Arc ID TYPE = TYPE of GCDB
line derived from Point ID value 0 = Township Line 1 =
Section Line 2 = Subdivision Line 3 = Special Line 4 =
Blank Line SYMBOL = Symbol used to draw GCDB Line based
on TYPE ORIG_ARC = Original arc flag DANGLE_FLAG = Dangle
flag
- Enumerated_Domain_Value_Definition:
-
Attributes contained within the arc attribute table describe
the beginning and ending points of an arc, the polygons
related to the left and right of a given arc, it's length,
and a determination of whether a given arc is a dangle.
- Enumerated_Domain_Value_Definition_Source:
BLM
- Unrepresentable_Domain:
-
Sequential unique whole numbers that are automatically generated.
- Attribute:
-
- Attribute_Label:
townid
- Attribute:
-
- Attribute_Label:
plssid
- Attribute:
-
- Attribute_Label:
lndkey
- Attribute:
-
- Attribute_Label:
alttownid
- Attribute:
-
- Attribute_Label:
town
- Attribute:
-
- Attribute_Label:
twndir
- Attribute:
-
- Attribute_Label:
twnfrt
- Attribute:
-
- Attribute_Label:
range
- Attribute:
-
- Attribute_Label:
rngdir
- Attribute:
-
- Attribute_Label:
rngfrt
- Attribute:
-
- Attribute_Label:
twndup
- Attribute:
-
- Attribute_Label:
twnmet
- Attribute:
-
- Attribute_Label:
primer
- Attribute:
-
- Attribute_Label:
state
- Attribute:
-
- Attribute_Label:
altsrcnm
- Attribute:
-
- Attribute_Label:
altsrcid
- Attribute:
-
- Attribute_Label:
objectid
- Attribute:
-
- Attribute_Label:
se_area_sh
- Attribute:
-
- Attribute_Label:
se_length_
- Attribute:
-
- Attribute_Label:
shape
- Attribute_Definition:
Feature geometry.
- Attribute_Definition_Source:
ESRI
- Attribute_Domain_Values:
-
- Unrepresentable_Domain:
Coordinates defining the features.
- Attribute:
-
- Attribute_Label:
SE_Area(shape)
- Attribute:
-
- Attribute_Label:
SE_Length(shape)
- Detailed_Description:
-
- Entity_Type:
-
- Entity_Type_Label:
gcdb.pat
- Entity_Type_Definition:
Polygon Attribute Table
- Entity_Type_Definition_Source:
ArcInfo
- Attribute:
-
- Attribute_Label:
Data
- Attribute_Definition:
-
Attributes contained within the polygon attribute table describe
the labels assigned to each parcel that define their respective
legal land description.
- Attribute_Definition_Source:
BLM
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value:
-
AREA = Area of polygon PERIMETER = Perimeter of polygon
GCDB# = Internal polygon ID GCDB-ID = User polygon ID
SECTN = (SEC_NO) Sectionnnumber SECFRT = (SEC_FRAC) Section
fractional code: (Blank) = full section, 1=1/4, 2=1/2,
3=3/4 SECDUP = (SEC_DUP) Flag determining duplicate section
number NOMINAL_LOCATION = Alpha code for quarter-quarter
section: A through P, Q, and Z MINOR_SUB = Minor subdivisioncodes
(R-Y) SURSYS = (SURVEY_TYPE) survey type: A through Z,
excluding C, F, S SURNUM1 = (SURVEY_NUMBER) Alpha-numeric
value generally taken from survey plat SURNUM2 = (SURVEY_SUFFIX)
Unique alpha-numeric code that further defines survey
number SURVEY_NOTE = Unique alpha-numeric code for describing
attributes of survey type PARAR = (ACREAGE) Acreage value
as described on source documents of survey PARSRC = (ACRE_SRC_CD)
Code identifying source of acreage value DESCDUP = (DUP_DESC_CD)
Records duplicate situation DISCCD = (DISCREPANCY_CD)
Code identifying differences between LR20000 and GCDB
polygons STATE = (STATE_CD) 2 letter state apbbreviation
PRIMER = (PRINMER_CD) Numeric code for identifying principal
meridian TOWN = (TIER_NO) Numeric code identifying tier
number TWNFRT = (TIER_FRAC) Numeric code identifying fractional
tier, 0, 1, 2, 3 TWNDIR = (TIER_DIR_CD) Alpha code for
identifying direction of township, N, S RANGE = (RANGE_NO)
Numeric code identifying range number RNGFRT = (RANGE_FRAC)
Numeric code identifying fractional range, 0=no fraction,
1=1/4, 2=1/2, 3=3/4 RNGDIR = (RANGE_DIR_CD) Alpha code
for identifying direction of range, E, W TWNDUP = (TOWNSHIP_DUP_CD)
Alpha code for determining a duplicate township: Blank,
A or B LATITUDE = (LABEL_LAT) Latitude of label point
in decimal degreees LONGITUTDE = (LABEL_LONG) Longitue
of label point in decimal degreees of label point SUBSURF_ONLY
= Code indicating the survey applies to subsurface only
(Y or blank) VALIDCD = (VALIDATION_CD) Code to report
whether the GCDB and LLD land descriptions match (Y,N,V)
- Enumerated_Domain_Value_Definition:
-
Attributes contained within the polygon attribute table
describe the legal land description of all parcels contained
within a given project.
- Enumerated_Domain_Value_Definition_Source:
BLM
- Detailed_Description:
-
- Entity_Type:
-
- Entity_Type_Label:
gcdb.nat
- Entity_Type_Definition:
Node Attribute Table
- Entity_Type_Definition_Source:
ArcInfo
- Attribute:
-
- Attribute_Label:
Data
- Attribute_Definition:
-
Attributes contained within the node attribute table describe
the elevation, error ellipse in north and east, point identifier,
coordinate values, and point connectivity codes.
- Attribute_Definition_Source:
BLM
- Attribute_Domain_Values:
-
- Enumerated_Domain:
-
- Enumerated_Domain_Value:
-
ARC# = Internal arc number corresponding to the node GCDB#
= Internal node ID GCDB-ID = User node ID ELEV = Elevation
SOFTWARE = Collection software (GMM/PCCS) YACC = (ERROR_N)
Average Reliability in feet XACC = (ERROR_E) Maximum Reliability
in feet LINE_CNT = Line count LINE_TYPE = Line type 0
= Section/Township/Special survey line 1 = 20 chain line
2 = 40 chain line 3 = 60 chain line 4 = blank line LINE_PEN
= pen command LX_SEC = Not used POINT_ID = Station/Point
ID X-UTM-ST = X-COORDINATE in UTM, State Plane, or map
inches derived from longitude of GCDB point. Y-UTM-ST
= Y-COORDINATE in UTM, State Plane, or map inches derived
from latitude of GCDB point EAST = (X-COORD) LONGITUDE
of point in decimal degrees NORTH = (Y-COORD) LATITUDE
of point in decimal degrees SYM_VALUE = Symbol value for
node
- Enumerated_Domain_Value_Definition:
-
Attributes contained within the node attribute table describe
the elevation, error ellipse in north and east, point
identifier, coordinate values, and point connectivity
codes.
- Enumerated_Domain_Value_Definition_Source:
BLM
- Overview_Description:
-
- Entity_and_Attribute_Overview:
- The
labels assigned to parcels within the GCDB are derived from the BLM's
LLD database contained within the LR2000 automated records system.
Labels designate the legal description of all parcels contained within
the PLSS. The GCDB Software Requirements Specifications (SRS), Appendix
B, contains domain and validation information. The GCDB Coverage Format
Description Document contains the GIS tables and data elements.
- Entity_and_Attribute_Detail_Citation:
- U.S.
Department of the Interior, U.S. Bureau of Land Management GCDB Coverage
Format and GCDB SRS. Internet versions are available at: www.blm.gov/gcdb/standards/index.htm
Top
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person:
Joseph Schmitt
- Contact_Organization:
Branch of Cadastral Survey
- Contact_Address:
-
- Address_Type:
mailing address
- Address:
1474 Rodeo Road
- City:
Santa Fe
- State_or_Province:
New Mexico
- Postal_Code:
87505
- Contact_Voice_Telephone:
505-438-7474
- Contact_Electronic_Mail_Address:
Joseph_Schmitt@blm.gov
- Resource_Description:
Downloadable Data
- Distribution_Liability:
- Although
these data have been processed successfully on a computer system at the
U.S. Bureau of Land Management, no warranty, expressed or implied, is
made by the BLM regarding the utility of the data on any other system,
nor shall the act of distribution constitute any such warranty.
- Standard_Order_Process:
-
- Digital_Form:
-
- Digital_Transfer_Information:
-
- Format_Name:
Compressed ARCE
- Transfer_Size:
5
- Digital_Transfer_Option:
-
- Online_Option:
-
- Computer_Contact_Information:
-
- Network_Address:
-
- Network_Resource_Name:
LSIS Download Site
- Access_Instructions:
www.geocommunicator.gov/lsi
- Online_Computer_and_Operating_System:
-
The WWW server which this data is available from is a
NT Quad Zeon server, running the NT operating system.
- Fees:
No fees are required for downloading the data that is on-line.
Top
- Metadata_Reference_Information:
-
- Metadata_Date:
20020926
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person:
Joseph Schmitt
- Contact_Organization:
Branch of Cadastral Survey
- Contact_Address:
-
- Address_Type:
mailing address
- Address:
1474 Rodeo Road
- City:
Santa Fe
- State_or_Province:
New Mexico
- Postal_Code:
87505
- Country:
USA
- Contact_Voice_Telephone:
505-438-7474
- Contact_Electronic_Mail_Address:
Joseph_Schmitt@blm.gov
- Metadata_Standard_Name:
FGDC Content Standards for Digital Geospatial Metadata
- Metadata_Standard_Version:
FGDC-STD-001-1998
- Metadata_Time_Convention:
local time
- Metadata_Extensions:
-
- Online_Linkage:
<http://www.esri.com/metadata/esriprof80.html>
- Profile_Name:
ESRI Metadata Profile
Generated by mp
version 2.7.3 on Thu Sep 26 14:05:05 2002