Spatial Reference Information 5. Entity and Attribute Information 6. Distribution Information 7. This information was produced by the USGS in cooperation with the Metropolitan Planning Council to support hydrologic analysis applications. This data was developed to support a variety of land surface and resource management work including hydrologic and visual analysis.
All features are current as of the date of the published quadrangle.
The USGS Hypsography data layer in DLG format should be used wherever it is available in an appropriate scale and with current information. Other supplementary data may be needed if the USGS data is old or not in the large-scale format. Hypsography data is contour information. The usefulness of the data will likely depend on the intervals between the contours, and the detail needed for analysis. Some software programs are capable of generating hypsography data from DEM data.