how to merge two polygon in arcgis tool
How to Merge Layers in ArcMap 9.3. 1. On the Tools menu, click red toolbox icon. 2. Select Data Management > General > Merge. 3. The Merge window will open.Note that you can only merge layers of like data. types (point layer to point layer, polygon layer to polygon layer, etc). 4. In the Input Datasets box, select the layers you would like to merge one at a. time from the down arrow. It will take a moment for the program to load the layer.