1. Forest Inventory and Analysis database
- Author(s):
- USDA Forest Service
2. Early successional forest and land cover geospatial data of the upper Midwest
			 
			
			- Author(s):
- Garner, James D.; Nelson, Mark D.; Tavernia, Brian G.; Housman, Ian W.; Perry, Charles H.
 
       U.S. Department of Agriculture
	U.S. Department of Agriculture