How To: Edit polygons with a common boundary


Instructions provided describe how to create a map topology that allows editing of a common boundary.


  1. In ArcMap, start an editing session.
  2. On the Topology toolbar, select the 'Map Topology' button.
  3. Check on the layer with the common boundary that needs to be edited, and click OK to activate the Topology Edit tool.
  4. Select the Topology Edit tool.
  5. Select the common boundary and begin editing.