2024 16 USC 687 – Grand Canyon Game Preserve included in park

2023 16 USC 687 – Grand Canyon Game Preserve included in park

2022 16 USC 687 – Grand Canyon Game Preserve included in park

2021 16 USC 687 – Grand Canyon Game Preserve included in park

2020 16 USC 687 – Grand Canyon Game Preserve included in park

2018 16 USC 687 – Grand Canyon Game Preserve included in park

2017 16 USC 687 – Grand Canyon Game Preserve included in park

2015 16 USC 687 – Grand Canyon Game Preserve included in park

2014 16 USC 687 – Grand Canyon Game Preserve included in park

2013 16 USC 687 – Grand Canyon Game Preserve included in park

2012 16 USC 687 – Grand Canyon Game Preserve included in park

2010 16 USC 687 – Grand Canyon Game Preserve included in park