2024 16 USC 797c – Dams in National Park System units

2023 16 USC 797c – Dams in National Park System units

2022 16 USC 797c – Dams in National Park System units

2021 16 USC 797c – Dams in National Park System units

2020 16 USC 797c – Dams in National Park System units

2018 16 USC 797c – Dams in National Park System units

2017 16 USC 797c – Dams in National Park System units

2015 16 USC 797c – Dams in National Park System units

2014 16 USC 797c – Dams in National Park System units

2013 16 USC 797c – Dams in National Park System units

2012 16 USC 797c – Dams in National Park System units

2010 16 USC 797c – Dams in National Park System units