| Location | ||||
|---|---|---|---|---|
| Haleakalā National Park | Kula, HI | 2022 | National Park | |
| Rocky Mountain National Park | Estes Park, CO | 2022 | National Park | |
| Crater Lake National Park | OR | 2019 | National Park | |
| Lassen Volcanic National Park | CA | 2018 | National Park | |
| Mammoth Cave National Park | Glasgow, KY | 2018 | National Park | |
| Pinnacles National Park | Soledad, CA | 2018 | National Park | |
| Sequoia National Park | Woodlake, CA | 2017 | National Park | |
| Yosemite National Park | Mammoth Lakes, CA | 2017 | National Park | |
| Bryce Canyon National Park | UT | 2016 | National Park | |
| Zion National Park | Hurricane, UT | 2016 | National Park |