US Counties in which the Northern riffleshell, Entire is known to or is believed to occur:

State County
Pennsylvania Armstrong
Pennsylvania Butler
Pennsylvania Clarion
Pennsylvania Crawford
Ohio Defiance
Indiana De Kalb
Kentucky Edmonson
Pennsylvania Erie
Pennsylvania Forest
Ohio Franklin
Kentucky Hart
West Virginia Kanawha
Ohio Madison
Pennsylvania Mercer
Michigan Monroe
Ohio Pickaway
Ohio Pike
Indiana Pulaski
Ohio Ross
Michigan Sanilac
Ohio Scioto
Ohio Union
Pennsylvania Venango
Kentucky Warren
Pennsylvania Warren
Michigan Wayne
Ohio Williams

This report contains Counties in which this species is known to or is believed to occur. If you are looking for the Section 7 range (for Section 7 Consultations), please visit the IPaC application.