Quarter-Quarter Section Grid Data
Section Index
Identification Information
Data Quality Information
Spatial Data Organization Information
Spatial Reference Information
Entity and Attribute Information
Distribution Information
Metadata Reference Information
Identification Information
Section Index
Citation:
Citation Information:
Originator: Michigan Department of Natural Resources
Publication Date: 1993
Title: Quarter-Quarter Section Grid Data
Edition: 1.0
Publication Information:
Publication Place: Lansing, MI
Publisher: MDNR
Other Citation Details: 1:24,000
Description:
Abstract: County town, range, section, quarter/quarter, quarter polygons, town, range, section, government lot polygons, or private claim polygons.
Purpose: Regional, county, and township land planning, evaluation, and management.
Supplemental Information:
Michigan Department of Natural Resources (DNR) quarter/quarter section CAD files were compared to hard copy General Land Office maps and to section lines from the Michigan Resource Information System base (MIRIS). Microstation was then used to make corrections to the quarter/quarter section files to reflect the more accurate MIRIS base section lines. In cases where more than 16 quarter/quarter sections were found within a section, or where data distortion warranted investigation, the quarter/quarter section files were corrected to include government lots as portrayed in the General Land Office maps. Government lots around lakes and rivers were NOT included. Most of the government lots included are along the north or west side of sections. Interior grid lines are the result of a model based on survey methods used to establish quarter/quarter sections. That is, starting from the south section line and measuring 1,320 feet north for each east-west quarter/quarter line. Starting from the east section line and measuring 1,320 feet west for each north-south quarter/quarter line. Corrections to non-standard sections were made to the northern most row and/or western most column of quarter/quarter sections. Corrected quarter/quarter section CAD files were converted to Arc/Info using Arc/Info igdsarc command. Converted coverages were cleaned with a dangle tolerance of 0 and a fuzzy tolerance of .5. All dangles were corrected and the coverage was recleaned if necessary. Coverages were then projected from Michigan State Plane coordinate system to Michigan GeoRef coordinate system (oblique mercator projection) using ArcInfo project command. Arc topology was created to allow for selection of arcs based on CAD level (values derived from igds conversion). A database of town, range, section, quarter, quarter/quarter and corner coordinates was derived from DNR survey section data using FoxPro. Values from database where then used to generate label points into Arc/Info polygon coverages. ArcView was used to compare quarter/quarter section coverage labels to survey section values and to correct polygon label errors. General Land Office maps were referenced to determine label values for government lots and private claims. After polygon label errors were corrected, the polygon attribute table was joined to the database of town, range, section, quarter, quarter/quarter values. Pseudo nodes were removed from the polygons using Arc/Info unsplit command. X-coordinate and y-coordinate values for the polygon label point were added to the polygon attribute table using Arc/Info addxy command. Node topology was then build, and node x-coordinate and y-coordinate values where added to the node attribute table using Arc/Info command addxy node.
Time Period of Content:
Time Period Information:
Currentness Reference: ground condition
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Keywords:
Theme:
Theme Keyword Thesaurus: none
Theme Keyword: forties
Theme Keyword: grid
Theme Keyword: quarter
Theme Keyword: quarter/quarter
Theme Keyword: range
Theme Keyword: section
Theme Keyword: town
Theme Keyword: trs
Place:
Place Keyword Thesaurus: none
Place Keyword: County Michigan
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: MDNR, Land and Mineral Services Division, Resource Mapping and Aerial Photography
Contact Person: MDNR, Land and Mineral Services Division, Resource Mapping and Aerial Photography
Contact Address:
Address Type: mailing and physical address
Address: P.O. Box 30448, Stephens T Mason Building
City: Lansing
State or Province: MI
Postal Code: 48909-7984
Country: USA
Contact Voice Telephone: (517) 241-2254
Contact Facsimile Telephone: (517) 335-3264
Hours of Service: 8:00a.m. - 5:00p.m.
Data Set Credit: N/A
Security Information:
Security Classification System: none
Security Classification: Unclassified
Security Handling Description: none
Native Data Set Environment: Windows NT, Arc/Info version 7.2.1
Cross Reference:
Citation Information:
Originator: General Land Office (US Federal Government)
Publication Date: 1816-1856
Title: 1890 Transcriptions of Surveyors Notes for Michigan (associated maps)
Publication Information:
Publisher: US General Land Office
Cross Reference:
Citation Information:
Originator: Michigan Department of Natural Resources
Publication Date: pre-1990
Title: MIRIS Base
Publication Information:
Publication Place: Lansing, MI
Publisher: MDNR
Cross Reference:
Citation Information:
Originator: Michigan Department of Natural Resources
Publication Date: 1995
Title: Quarter/Quarter Section CAD Files
Publication Information:
Publication Place: Lansing, MI
Publisher: MDNR
Cross Reference:
Citation Information:
Originator: Michigan Department of Natural Resources
Publication Date: 1998
Title: Survey Sections
Publication Information:
Publication Place: Lansing, MI
Publisher: MDNR
Data Quality Information
Section Index
Attribute Accuracy:
Attribute Accuracy Report: See Entity and Attribute section.
Logical Consistency Report: Polygon and chain-node topology present.
Completeness Report:
This data set does not represent all government lots noted in the General Land Office transcriptions (and associated maps). Most government lots includes are found along the north and west sides of sections. Lakes that did not contain survey sections in the General Land Office maps are represented as polygons with null values.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report:
Section lines have an accuracy of +/- 23 meters, based on horizontal accuracy of MIRIS base from which the section lines were taken. Interior grid lines represent result of model based on survey methods used to establish quarter/quarter grid. That is, starting from the south section line and measuring 1320 feet north for each east-west quarter/quarter line. Starting from the east section line and measuring 1320 feet west for each north-south quarter/quarter line. Corrections to non-standard sections made to the northern most row and western most column of quarter/quarter sections.
Spatial Data Organization Information
Section Index
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type: Point
SDTS Terms Description:
SDTS Point and Vector Object Type: String
SDTS Terms Description:
SDTS Point and Vector Object Type: GT-polygon composed of chains
Spatial Reference Information
Section Index
Horizontal Coordinate System Definition:
Planar:
Grid Coordinate System:
Grid Coordinate System Name: Other_Grid_System's_Definition
Other Grid System's Definition:
Other Grid System's Definition: Michigan GeoRef from Oblique Mercator projection, Scale factor at center line = 0.9996, Azimuthal angle = 337.25556, False easting = 2546731.496, False northing = -4354009.816
Planar Coordinate Information:
Planar Coordinate Encoding Method: Coordinate Pair
Planar Distance Units: meters
Geodetic Model:
Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Entity and Attribute Information
Section Index
Detailed Description:
Entity Type:
Entity Type Label: Coverage.PAT
Entity Type Definition: Location attribution for polygons
Entity Type Definition Source: General Land Office Transcriptions, RMAP Survey Sections
Attribute:
Attribute Label: AREA
Attribute Definition: Area of polygon in square meters
Attribute Definition Source: Computed
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Positive real numbers
Attribute:
Attribute Label: CLAIM
Attribute Definition: Private claim number
Attribute Definition Source: General Land Office transcriptions
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 0001 - ?
Attribute:
Attribute Label: CNTY2
Attribute Definition: MIRIS county code for second county if polygon is in more than one county
Attribute Definition Source: MIRIS base
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: null, 01-83
Attribute:
Attribute Label: COUNTY
Attribute Definition: MIRIS county code
Attribute Definition Source: MIRIS base
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 01-83
Attribute:
Attribute Label: Coverage#
Attribute Definition: Internal feature number
Attribute Definition Source: Computed
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Sequential unique positive integer
Attribute:
Attribute Label: Coverage-ID
Attribute Definition: User-assigned feature number
Attribute Definition Source: User-defined
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Integer
Attribute:
Attribute Label: GEO_ID
Attribute Definition: unique geography code
Attribute Definition Source: TWNRNGSEC + QTR_QTR + QTR or TWNRNGSEC + GOV_LOT or COUNTY + CLAIM
Attribute:
Attribute Label: GOV_LOT
Attribute Definition: Government lot number
Attribute Definition Source: General Land Office transcriptions
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 01-?
Attribute:
Attribute Label: PERIMETER
Attribute Definition: Perimeter of polygon in meters
Attribute Definition Source: Computed
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Positive real numbers
Attribute:
Attribute Label: QTR
Attribute Definition: survey quarter value
Attribute Definition Source: Survey sections, General Land Office transcriptions
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: NE, NW, SE, SW
Attribute:
Attribute Label: QTR_QTR
Attribute Definition: survey quarter/quarter value
Attribute Definition Source: Survey sections, General Land Office transcriptions
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: NE, NW, SE, SW
Attribute:
Attribute Label: RANGE
Attribute Definition: survey range for entire state
Attribute Definition Source: Survey sections
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: R01E-R17E, R01W-R49W
Attribute:
Attribute Label: SECTION
Attribute Definition: survey section
Attribute Definition Source: Survey sections
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 01-36
Attribute:
Attribute Label: TOWN
Attribute Definition: survey town (tier)
Attribute Definition Source: Survey sections
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: T01N-T67N, T01S-T09S
Attribute:
Attribute Label: TWNRNG
Attribute Definition: town + range
Attribute Definition Source: town and range items
Attribute:
Attribute Label: TWNRNGSEC
Attribute Definition: town + range + section
Attribute Definition Source: town, range, and section items
Attribute:
Attribute Label: X-COORD
Attribute Definition: x-coordinate of label point
Attribute Definition Source: calculated by Arc/Info using addxy command
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: numeric value
Attribute:
Attribute Label: Y-COORD
Attribute Definition: y-coordinate of label point
Attribute Definition Source: calculated by Arc/Info using addxy command
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: numeric value
Detailed Description:
Entity Type:
Entity Type Label: Coverage.AAT
Entity Type Definition: Arc attribution containing information from design file
Entity Type Definition Source: Quarter/quarter section file
Attribute:
Attribute Label: Coverage#
Attribute Definition: Internal feature number
Attribute Definition Source: Computed
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Sequential unique positive integer
Attribute:
Attribute Label: Coverage-ID
Attribute Definition: User-assigned feature number
Attribute Definition Source: User-defined
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Integer
Attribute:
Attribute Label: FNODE#
Attribute Definition: Internal number of from-node
Attribute Definition Source: Computed
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Sequential unique positive integer
Attribute:
Attribute Label: IGDS-CLASS
Attribute:
Attribute Label: IGDS-COLOR
Attribute:
Attribute Label: IGDS-CPXID
Attribute:
Attribute Label: IGDS-CPXTYPE
Attribute:
Attribute Label: IGDS-FONT
Attribute:
Attribute Label: IGDS-GGNO
Attribute:
Attribute Label: IGDS-LAYER
Attribute Definition: Microstation layer
Attribute Definition Source: Quarter/quarter section file
Attribute:
Attribute Label: IGDS-LEVEL
Attribute Definition: Microstation level
Attribute Definition Source: Quarter/quarter section file
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: 61,63
Attribute:
Attribute Label: IGDS-OFFSET
Attribute:
Attribute Label: IGDS-PROPS
Attribute:
Attribute Label: IGDS-STYLE
Attribute:
Attribute Label: IGDS-TEXT
Attribute:
Attribute Label: IGDS-TYPE
Attribute Definition: Microstation type value
Attribute Definition Source: Quarter/quarter section file
Attribute:
Attribute Label: IGDS-WEIGHT
Attribute:
Attribute Label: LENGTH
Attribute Definition: Length of arc in coverage units
Attribute Definition Source: Computed
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Positive real numbers
Attribute:
Attribute Label: LPOLY#
Attribute Definition: Internal number of poly to left of arc
Attribute Definition Source: Computed
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Sequential unique positive integer
Attribute:
Attribute Label: RPOLY#
Attribute Definition: Internal number of poly to right of arc
Attribute Definition Source: Computed
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Sequential unique positive integer
Attribute:
Attribute Label: TNODE#
Attribute Definition: Internal number of to-node
Attribute Definition Source: Computed
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Sequential unique positive integer
Detailed Description:
Entity Type:
Entity Type Label: Coverage.NAT
Entity Type Definition: Node attribution
Entity Type Definition Source: Arc/Info
Attribute:
Attribute Label: Coverage#
Attribute Definition: Internal feature number
Attribute Definition Source: Computed
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Sequential unique positive integer
Attribute:
Attribute Label: Coverage-ID
Attribute Definition: User-assigned feature number
Attribute Definition Source: User-defined
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: Integer
Attribute:
Attribute Label: X-COORD
Attribute Definition: x-coordinate of node
Attribute Definition Source: calculated in Arc/Info using add xy node command
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: numeric value
Attribute:
Attribute Label: Y-COORD
Attribute Definition: y-coordinate of node
Attribute Definition Source: calculate in Arc/Info using add xy node command
Attribute Domain Values:
Enumerated Domain:
Enumerated Domain Value: numeric value
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Person Primary:
Contact Person: McDonald, Donald
Contact Organization: MDNR Land and Mineral Services Division, Resource Mapping and Aerial Photography Section
Contact Address:
Address Type: mailing address
Address: P.O. Box 30448
City: Lansing
State or Province: MI
Postal Code: 48909-7948
Country: USA
Contact Voice Telephone: 517-373-2534
Contact Facsimile Telephone: 517-335-3264
Contact Electronic Mail Address: [email protected]
Hours of Service: 7:30 a.m. - 4:30 p.m.
Resource Description: RMAP data
Distribution Liability: MDNR assumes no liability for results or conclusions drawn from use of this data.
Standard Order Process:
Custom Order Process: Inquire about special distribution services.
Technical Prerequisites: Requester is responsible for loading, conversion, use, and interpretation of data.
Metadata Reference Information
Section Index
Metadata Date: 20000324
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: MDNR, Land and Mineral Services Division, Resource Mapping and Aerial Photography
Contact Person: MDNR, Land and Mineral Services Division, Resource Mapping and Aerial Photography
Contact Address:
Address Type: mailing and physical address
Address: P.O. Box 30448, Stephens T Mason Building
City: Lansing
State or Province: MI
Postal Code: 48909-7984
Country: USA
Contact Voice Telephone: (517) 241-2254
Contact Facsimile Telephone: (517) 335-3264
Hours of Service: 8:00a.m. - 5:00p.m.
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: 19940608
Metadata Time Convention: local time
Metadata Security Information:
Metadata Security Classification System: Unclassified
Metadata Security Classification: Unclassified
SMMS Metadata report generated 03/31/2000