Revision History for Scientific Investigations Report 2020-5101 By Matthew Kauffman, Holly Copeland, Jodi Berg, Scott Bergen, Eric Cole, Matthew Cuzzocreo, Sarah Dewey, Julien Fattebert, Jeff Gagnon, Emily Gelzer, Chris Geremia, Tabitha Graves, Kent Hersey, Mark Hurley, Rusty Kaiser, James Meacham, Jerod Merkle, Arthur Middleton, Tristan Nuñez, Brendan Oates, Daniel Olson, Lucas Olson, Hall Sawyer, Cody Schroeder, Scott Sprague, Alethea Steingisser, and Mark Thonhoff Ungulate Migrations of the Western United States, Volume 1 ----------------------------------------------------- Posted online November 12, 2020 ----------------------------------------------------- Revised and reposted December 14, 2023 Figure 25 has been replaced with the correct map.