Zoology: Nachusa Bison: Bison13

Volunteer Ruth Bowers-Sword works to clear a stretch of old fence in what will eventually be the south bison unit at the Nachusa Grasslands more than doubling the bison's overall area.

Volunteer Ruth Bowers-Sword works to clear a stretch of old fence in what will eventually be the south bison unit at the Nachusa Grasslands more than doubling the bison's overall area.