Description of Parent Data Set: It is in a vector digital data structure. The source software used was ARC/INFO 5.0.1 and the conversion software ARC/INFO 7.0.3.
Intended use of data: These data are typically used as base data for other coverages. The data are intended for use as a general reference to the extent and boundaries of the 7.5 minute USGS quads.
Related spatial and tabular data sets: Quad Grid for 7.5 minute USGS Quads - Clipped (quad_grid_cl); Rio Puerco Watershed Basin Boundary (wshed)
The 'name' attribute contains 7.5 minute USGS quadrangle names.
Some attributes in <covername>.aat, including fnode#, tnode#, lpoly#, rpoly#, length, cover#, and cover-id are included in the coverage by default. Please refer to ESRI's ARC/INFO documentation for more detailed descriptions of these attributes.
The 'ln15min' attribute contains information regarding whether the 7.5 minute quad boundary is also a 15 minute quad boundary.
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