Mangham, Webster, 3/2007, SDETrims.DBO.Bound_TRAPolitical.Online Links:
- Service=sde:sqlserver:CHUCKNORRIS; Database=SDETrims; Version=dbo.DEFAULT
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is North American Datum of 1927.
The ellipsoid used is Clarke 1866.
The semi-major axis of the ellipsoid used is 6378206.400000.
The flattening of the ellipsoid used is 1/294.978698.
Coordinates defining the features.
Sequential unique whole numbers that are automatically generated.
To display the TRA's legal boundary.
Data sources used in this process:
Accuracy is best estimated from the TX original land survey file downloaded from TNRIS: It states the following:
Lines were manually transferred/scaled from Texas General Land Office county survey maps onto U.S.G.S. 7.5 minute quadrangle maps using cultural features, such as roads, fences, and water features for reference. The survey lines and related annotation were then digitized from the quad maps. Attribute information was keyed from the GLO Abstract of Original Land Titles and then imported into the dataset using the abstract number (ANUM) as the primary key.
Accuracy is best estimated from the TX original land survey file downloaded from TNRIS: It states the following:
Lines were manually transferred/scaled from Texas General Land Office county survey maps onto U.S.G.S. 7.5 minute quadrangle maps using cultural features, such as roads, fences, and water features for reference. The survey lines and related annotation were then digitized from the quad maps. Attribute information was keyed from the GLO Abstract of Original Land Titles and then imported into the dataset using the abstract number (ANUM) as the primary key.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- REQUIRED: Restrictions and legal prerequisites for accessing the data set.
- Use_Constraints:
- REQUIRED: Restrictions and legal prerequisites for using the data set after access is granted.
Downloadable Data
| Data format: | Size: 0.060 |
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REQUIRED: The telephone number by which individuals can speak to the organization or individual. (voice)