2024 36 CFR 13.1904 – Kennecott Mines National Historic Landmark (KNHL)

2023 36 CFR 13.1904 – Kennecott Mines National Historic Landmark (KNHL)

2022 36 CFR 13.1904 – Kennecott Mines National Historic Landmark (KNHL)

2021 36 CFR 13.1904 – Kennecott Mines National Historic Landmark (KNHL)

2020 36 CFR 13.1904 – Kennecott Mines National Historic Landmark (KNHL)

2019 36 CFR 13.1904 – Kennecott Mines National Historic Landmark (KNHL)

2016 36 CFR 13.1904 – Kennecott Mines National Historic Landmark (KNHL)

2015 36 CFR 13.1904 – Kennecott Mines National Historic Landmark (KNHL)

2014 36 CFR 13.1904 – Kennecott Mines National Historic Landmark (KNHL)