TxDOT County / Urban files /
The transportation information in the TxDOT urban map files were digitized from USGS 7.5 minute quadrangles. Updates are made using TxDOT highway construction plans, aerial photographs, official city maps and field inventory data. These files contain many of the features found on 7.5 minute quads,...
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| Format: | Map |
| Language: | English |
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Austin, TX :
Texas Natural Resources Information,
[2005]
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| Summary: | The transportation information in the TxDOT urban map files were digitized from USGS 7.5 minute quadrangles. Updates are made using TxDOT highway construction plans, aerial photographs, official city maps and field inventory data. These files contain many of the features found on 7.5 minute quads, except for contour lines, fence lines, jeep trails, electrical transmission lines, oil and gas pipelines and control data monuments. |
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| Item Description: | Title supplied by cataloger. Relief shown by contours and spot highlights. Disks contain either ARC export .e00 format ; universal transverse Mercator projection, datum NAD 83, decimal degrees. Electronic resource. |
| Physical Description: | 3 computer optical discs : color ; 4 3/4 in. |
| Format: | System requirements: CD-ROM drive. |