Surveyors And The

Cadastral Data Content Standard

- Part Two -

Minnesota Department Of Transportation
Geodetic Database

General Information
Crosswalk To The Cadastral Data Content Standard

General Information

The Minnesota Department of Transportation (DOT) maintains an on-line source of geodetic data.

Minnesota's DOT Geodetic Database contains geodetic control marks established to provide precise horizontal and vertical control positions for the registration of surveying and mapping activities. Precise horizontal positions are displayed in three forms:

Latitude & Longitude on a spherical coordinate system based on NAD 27 and/or NAD 83 Datums.
X & Y plane coordinates on the Minnesota State Plane Coordinate System, South, Central, or North Zones, based on NAD 27 and/or NAD 83 Datums.
X & Y plane coordinates on the Minnesota County Coordinate System based on NAD 83 Datum only.

All elevations are displayed as the marks height above mean sea level for both the NGVD 29 and the NAVD 88 Datum.

Each geodetic database file is selectable by county and sheet, and displays a MN/DOT GEODETIC DATABASE sheet. You can see an example from Hennepin County.

Crosswalk of Minnesota DOT Geodetic Database To The Cadatral Data Content Standard

The left column of the table below contains a list of the some of the cadastral data used in the Minnesota DOT geodetic database.

The right column contains the Cadastral Data Content Standard entity and attribute which corresponds to the information in the left column.

Overall, the table lists a potential of fourteen connections between the Minnesota DOT geodetic database and the FGDC Cadastral Data Content Standard. This represents fourteen links, key terms, or relate items --- in other words, a wealth of capability to work with standardized definitions and to use these definitions as understandable links between multiple agencies and varying databases.

Minnesota DOT Geodetic Database	Cadastral Data Content Standard Entity/Attribute
State - Minnesota	Public Agency/State
County - e.g. Hennepin	Public Agency/County
Quarter section - e.g. NW	Public Land Survey System Township Second Division / Second Division Type
Section - e.g. 3	PLSS Township First Division/Designator
Township - e.g. 29N	PLSS Township/Township Number PLSS Township/Township Direction
Range - e.g. 24W	PLSS Township/Range Number PLSS Township/Range Direction
Agency - government agency that established the geodetic mark - e.g. Minneapolis	Public Agency/City
Year Monument Set	Corner Point/Monument Date Set
Physical description of the monument material or structure	Corner Point/Monument Type
National Geodetic Vertical Datum - NGVD 29	Corner Point Measured Coordinate/Vertical Datum
North American Vertical Datum - NAVD 88	Corner Point Measured Coordinate/Vertical Datum
NAD 83	Corner Point Measured Coordinate/Horizontal Datum
Latitude⁽¹⁾	Corner Point Measured Coordinate/Y Coordinate
Longitude⁽¹⁾	Corner Point Measured Coordinate/X Coordinate

Note:
⁽¹⁾ The Minnesota DOT Geodetic Database accomodates for NAD 27, NAD 83, NAD 83(1986), and NAD 83(1996) data, as well as State Plane X-Y coordinates for each of these datums, and County X-Y coordinates for NAD 83(1986) and NAD 83(1996).

Back To Part Two - Examples of Automated and On-line Surveying Information

Table Of Contents - Surveryors and the Cadastral Data Content Standard

Links to the other Cadastral Courses:
Learning The Cadastral Data Content Standard
County Recorders And The Cadastral Data Content Standard
Cadastral Information for GIS Specialists

Presented by the United States Department of the Interior Bureau of Land Management, and

the Federal Geographic Data Committee Cadastral Subcommittee