When a civil engineer or a landscape architect creates topography data for a project and you want to reference it for a building model, you can link the topography to 
	 Revit. 
  
 To use topography data provided by a civil engineer (or a landscape architect), use the following workflow. 
	 
- The civil engineer uses 
		  Civil 3D to do the following: 
		  - Develop the topography. 
			 
- Publish surfaces to a 
				Autodesk Docs project. 
			 
 
- The project lead uses 
		  Autodesk Docs to do the following: 
		  - Verify the topography data. 
			 
- Share the topography with the architect. 
			 
 
- The architect uses 
		  Revit to do the following: 
		  - Link the topography to the 
				Revit model. 
			 
- Reference the topography while developing the building model. 
			 
 
- After updating the topography, the civil engineer publishes its surfaces to the same 
		  Autodesk Docs project. 
		
- To see the updates, the architect reloads the linked topography in the 
		  Revit model.