2024 16 USC 434 – National monument in Riverside County, California

2023 16 USC 434 – National monument in Riverside County, California

2022 16 USC 434 – National monument in Riverside County, California

2021 16 USC 434 – National monument in Riverside County, California

2020 16 USC 434 – National monument in Riverside County, California

2018 16 USC 434 – National monument in Riverside County, California

2017 16 USC 434 – National monument in Riverside County, California

2015 16 USC 434 – National monument in Riverside County, California

2014 16 USC 434 – National monument in Riverside County, California

2013 16 USC 434 – National monument in Riverside County, California

2012 16 USC 434 – National monument in Riverside County, California

2010 16 USC 434 – National monument in Riverside County, California