Here are the merit stage briefs:
Petitioner
17-532 tsac Indian Law Professors
Natural Resources Law Professors Brief
PACIFIC AND INLAND NORTHWEST TREATY TRIBES Brief
Southern Ute Indian Tribe and Ute Mountain Ute Tribe
Respondent
Brief amici curiae of Western Association of Fish and Wildlife Agencies
Amicus Brief of Association of Fish and Wildlife Agencies
States Amicus Brief Supporting Respondent
Amicus brief of Safari Club International
Amici Curiae Brief of Wyoming Stock Growers Association
Here are the cert stage briefs:
2017-10-05 Herrera Cert Petition
17-532 Amici Brief Indian Law Professors
Wyoming opposition to Herrera petition
17-532 Herrera (ac pet) [US invitation brief]