Jeffrey M. Holden
Books By Jeffrey M. Holden
Dead Moose on Isle Royale: Off-Trail with the Citizen Scientists of the Wolf-Moose Project
By Jeffrey M. Holden
Isle Royale is one of the most remote and pristine of all the U.S. national parks, and the site of the world’s longest-running predator–prey study. Every summer, Holden leads groups

