Using the Highest/Lowest Point tools
Release 9.3 Last modified December 4, 2009	Print all topics in : "Terrain Analysis tools"

About using the Highest/Lowest Point tools

The Highest and Lowest Point tools calculate the highest or lowest elevation values in a user-defined area. The tools operate with DTED catalogs or raster datasets as the input surface. As with all the tools in the Terrain palette, the Highest and Lowest Point tools use the selected layer in the Layer list control as the input surface layer.

How to use the Highest/Lowest Point tools

1. Enable the Military Analyst extension.
   
2. Install and enable ArcGIS Spatial Analyst.
   
3. Add the Military Analyst toolbar.
   
4. Create and load a DTED or raster surface dataset catalog.
   
5. Add the DTED catalog or raster surface dataset to ArcMap.
   
Note that for the Highest/Lowest Point tools to function, a raster surface dataset must contain elevation values.

6. Click the Layer list control on the Military Analyst toolbar and click the desired input layer. A DTED catalog is used in this example.
   
7. Click the Terrain palette on the Military Analyst toolbar and click either the Find Highest Point tool or the Find Lowest Point tool.
   
8. With either tool active, click and drag a bounding rectangle in the data frame for the area of interest.
   
The highest points are returned as a red point layer in the table of contents; the lowest points are returned as black point layers. The point feature class is stored in the Terrain Analysis working directory.

Tip

The tools will not become active until a DTED or RPF catalog or raster dataset is displayed in ArcMap.

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