Building on our earlier research, which focused on how landscape features affect atmospheric deposition, we have developed a new modeling approach for scaling point measurements of atmospheric deposition to whole landscapes in Acadia and Great Smoky National Parks. These sites were chosen for their potential air pollutant impacts and terrain features that, in the past, have severely restricted where routine flux monitoring could be done. The results of this project are likely to represent a crucial step in atmospheric deposition research as well as offer an important tool for the management of ecosystems exposed to atmospheric deposition.