| Guided "Bison-tennial" Hike | Prairie State Park | Hiking | Apr 3, 2021 |
| Guided "Bison-tennial" Hike | Prairie State Park | Hiking | May 1, 2021 |
| Guided "Bison-tennial" Hike | Prairie State Park | Hiking | Jun 5, 2021 |
| Guided "Bison-tennial" Hike | Prairie State Park | Hiking | Jul 10, 2021 |
| Guided "Bison-tennial" Hike | Prairie State Park | Hiking | Aug 7, 2021 |
| Guided "Bison-tennial" Hike | Prairie State Park | Hiking | Sep 11, 2021 |
| Guided "Bison-tennial" Hike | Prairie State Park | Hiking | Nov 6, 2021 |
| Guided "Bison-tennial" Hike | Prairie State Park | Hiking | Dec 4, 2021 |
