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Northern Research Station
11 Campus Blvd., Suite 200
Newtown Square, PA 19073
(610) 557-4017
(610) 557-4132 TTY/TDD

Contact Us


The Northern Research Station has realigned our staff from 37 Research Work Units and Programs into 14 new Research Work Units.

RWU-4157 is now part of NRS-14, Hardwood Tree Improvement and Regeneration Center.

Research Questions

Charles H. Michler, Program Manager
(765) 496-6016


Website Questions

Sharon Hobrla, Webmaster
(517)355-7740, ext. 111


Correspondence may be sent to:

USDA Forest Service, NRS
Forestry Sciences Laboratory
Hardwood Tree Improvement & Regeneration Center
715 W. State Street
West Lafayette, IN 47907-2061



Last Modified: 12/21/2007