1. US Department of Agriculture Forest Service State and Private Forestry, Eastern Region 271 Mast Road, Durham, NH 03824, USA marc.f.digirolomo@usda.gov, christopher.o.blackington@usda.gov
2. 3 Halde Street, Waterville, ME 04901, USA
3. 323 Augusta Road, Winslow, ME 04901, USA