1/31/08 Changes and Updates - The lakes that are split by road feature for example, but have the same name, feature type, and hydrologic flow type have been merged into one element - All of the area water features have been labeled using the USGS 24k topo maps, so even though this is a 100k hydro layer, all of the named water bodies should be included - Field names have been changed so that they can be dumped out to shapefiles without truncation. I've also added alias' so there is a meaningful name associated with each field. - All of the standard fields in the hydro layers have changed to Flow_Type (alias Flow Type), Feat_Type (alias Feature Type), Feat_Mod (alias Feature Modifier), Name (alias Primary Name), Name_2nd (alias Secondary Name). - Draw and Label fields have been added. Not all of the features in the line features are hydro features. There are river centerlines for example in the linear hydro data set that allow river areal features to be labeled along their length. The centerlines in that dataset are simply there to use for labeling rivers that are displayed as polygons. This allows the user to label a river along it's length and not horizontally like a lake would be labeled. So in this case, the Draw field would allow a river polygon to be drawn, but the Label field could be used to suppress horizontal labels from being put on the those polygons. The label field might be useful for only labeling lakes and marshes and not linear polygon features like rivers. If you were to dump this to a GDB or shapefile to customize a map, these fields could be easily modified by the user to not label smaller features for example. This isn't the best database design, but this makes it easy to label something without putting in several complicated boolean statements With the label field you could simply put Label = 'Yes' and knowing that you'd already set the rivers to 'No', you'd be done. North Dakota hydrology, polygon features, showing major rivers, ponds, and lakes