Record Display for the EPA National Library Catalog
RECORD NUMBER: 1865 OF 2018| Main Title | Topographic data sets for Texas by river basin / | ||||||||||||||||
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| Author | Tan, Lu L. | ||||||||||||||||
| Publisher | U.S. Geological Survey, | ||||||||||||||||
| Year Published | 1997 | ||||||||||||||||
| OCLC Number | 63548462 | ||||||||||||||||
| Subjects | River surveys--Texas ; River channels--Texas ; Rivers--Texas ; Watersheds--Texas ; Texas--Maps ; Hydrogeology--Texas | ||||||||||||||||
| Holdings |
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| Collation | 1 computer optical disc : color ; 4 3/4 in. | ||||||||||||||||
| Notes | Data sets in ARC/INFO (vers. 7.0.4) in compressed ASCII grid; graphic images of data sets also provided in GIF format. "Prepared in cooperation with the U.S. Geological Survey, U.S. Dept. of the Interior and Texas Natural Resource Conservation Commission."--Jewel case insert. |
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| Contents Notes | "Contains 1:250,000-scale topographic data sets for Texas organized by river basins ... Topographic data sets were used to delineate drainage basins for streams and stream-sampling locations in Texas ... Additional data sets include flow-direction, flow-accumulation, and hillshade grids, all derived from the elevation grid data sets." |