| Civilian Conservation Corps Self-Guided Tour | | Interpretive Programs | Feb 27, 2020 to Oct 31, 2020 |
| Cancelled: Explorer Backpack | | Interpretive Programs | Mar 1, 2020 to Oct 31, 2020 |
| Photo Walks | | Interpretive Programs | Mar 28, 2020 to Oct 24, 2020 |
| Cancelled: Photo Tours of Cathedral Cave and Onondaga Cave | | Cave Tours | May 17, 2020 to Oct 17, 2020 |
| Cancelled: Cathedral Cave Night Tours | | Cave Tours | May 23, 2020 to Oct 10, 2020 |
| Summer Bluegrass Concert Series | | | May 23, 2020 to Sep 25, 2020 |
| Picking Up Pawpaws | | | Sep 16, 2020 to Sep 26, 2020 |
| Stream Team Volunteering | | | Sep 25, 2020 to Oct 18, 2020 |
| Informational Meeting | | | Sep 26, 2020 |
| Cancelled: Prairie Jubilee | | Interpretive Programs | Sep 26, 2020 |
| Informational Meeting | | | Sep 26, 2020 |
| Postponed: 156th Anniversary of Battle of Pilot Knob Reenactment | | Interpretive Programs | Sep 26, 2020 to Sep 27, 2020 |
| Women's Free Fishing Day | | Fishing | Sep 26, 2020 |
| Ribbon-Cutting Ceremony for Dock Expansion Project | | | Sep 30, 2020 |
| Informational Meeting | | | Sep 30, 2020 |
| Cancelled: WIN: Women in Nature | | Fishing | Oct 2, 2020 to Oct 4, 2020 |
| How to Build a Fly Rod | | Fishing | Oct 2, 2020 to Oct 3, 2020 |
| Informational Meeting | | | Oct 3, 2020 |
| Cancelled: 2020 Salt River Quilt and Craft Show | | | Oct 3, 2020 to Oct 4, 2020 |
| Cancelled: Fall Festival | | Interpretive Programs | Oct 3, 2020 |
| Informational Meeting | | | Oct 3, 2020 |
| Operation Roaring River | | Fishing | Oct 3, 2020 to Oct 6, 2020 |
| Cancelled: 2020 Salt River Quilt and Craft Show | | | Oct 3, 2020 to Oct 4, 2020 |
| Volunteer Meeting | | | Oct 6, 2020 |
| Cancelled: Tuesdays on the Trail Tram Tours: North Jefferson to Hartsburg | | Interpretive Programs | Oct 6, 2020 |
| Landing After Hours: WPA Murals in Missouri | | Interpretive Programs | Oct 7, 2020 |
| WOW National Outdoor Recreation and Conservation School | | Interpretive Programs | Oct 9, 2020 to Oct 11, 2020 |
| Informational Meeting | | | Oct 10, 2020 |
| Informational Meeting | | | Oct 10, 2020 |
| Stream Critters and Health | | | Oct 10, 2020 |
| Cancelled: Fall Colors Lakeside Hike | | Hiking | Oct 10, 2020 |
| Holland Derby | | Fishing | Oct 10, 2020 to Oct 11, 2020 |
| Informational Meeting | | | Oct 15, 2020 |
| Informational Meeting | | | Oct 15, 2020 |
| Spooktacular | | Camping | Oct 16, 2020 to Oct 17, 2020 |
| Third Fridays @ 3: Themed State Capitol Tours | | Historic Site Tours | Oct 16, 2020 to Dec 18, 2020 |
| Informational Meeting | | | Oct 17, 2020 |
| Babler Honeysuckle Bash | | | Oct 17, 2020 |
| Missouri Days Fall Colors Hikes | | Hiking | Oct 17, 2020 to Oct 18, 2020 |
| Cancelled: Campground Trick-or-Treating | | Camping | Oct 17, 2020 |
| Cancelled: Watkins Mill Safety Fair and Trunk-or-Treat | | Interpretive Programs | Oct 17, 2020 |
| Cancelled: Watkins Mill Safety Fair and Trunk-or-Treat | | Interpretive Programs | Oct 17, 2020 |
| Cancelled: Campground Trick-or-Treating | | Camping | Oct 17, 2020 |
| Ribbon Cutting Ceremony and Public Meeting | | | Oct 17, 2020 |
| Informational Meeting | | | Oct 17, 2020 |
| Informational Meeting | | | Oct 17, 2020 |
| Informational Meeting - Mid-Eastern Section | | | Oct 18, 2020 |
| Cancelled: 2020 Katy Trail Fall Colors Tram Tours | | | Oct 21, 2020 to Oct 22, 2020 |
| Halloween Event for Registered Campers | | Camping | Oct 24, 2020 |
| Halloween Hootenanny | | Camping | Oct 24, 2020 |
| Hunter-Dawson Cemetery Tour | | Interpretive Programs | Oct 24, 2020 |
| Fall Fun Event | | Camping | Oct 24, 2020 |
| Halloween Campground Events | | Camping | Oct 24, 2020 |
| FUN: Family Ultimate Nature 2020 | | Interpretive Programs | Oct 24, 2020 to Oct 28, 2020 |
| Breakfast With Park Staff | | | Oct 24, 2020 |
| Wakonda State Park Spooktacular 2020 | | Camping | Oct 24, 2020 |
| Rural Heritage Day | | Interpretive Programs | Oct 24, 2020 |
| Informational Meeting | | | Oct 24, 2020 |
| Cancelled: Cuivre Halloween Spooktacular | | Camping | Oct 24, 2020 |
| Informational Meeting | | | Oct 25, 2020 |
| Informational Meeting - Knob Noster Section | | | Oct 26, 2020 |
| Informational Meeting | | | Oct 26, 2020 |
| Informational Meeting | | | Oct 29, 2020 |
| Cancelled: Spooky Cave Tours of Onondaga Cave | | Cave Tours | Oct 31, 2020 |
| Babler's Third Annual Fall Festival | | Hiking | Oct 31, 2020 to Nov 1, 2020 |
| Babler's "Howl"-oween | | | Oct 31, 2020 |
| Public Halloween Event | | Camping | Oct 31, 2020 |
| Landing After Hours: Don Carlos Archaeology Project, Prairie Home, Missouri | | Interpretive Programs | Nov 4, 2020 |
| Informational Meeting | | | Nov 6, 2020 |
| Informational Meeting | | | Nov 6, 2020 |
| Bison Hike | | Hiking | Nov 7, 2020 |
| Informational Meeting | | | Nov 14, 2020 |
| Informational Meeting | | | Nov 18, 2020 |
| Informational Meeting | | | Nov 18, 2020 |
| Landing After Hours: Modern Missouri Masters of Fiction: Evan S. Connell and Daniel Woodrell | | Interpretive Programs | Dec 2, 2020 |
| Bison Hike | | Hiking | Dec 5, 2020 |
| Cancelled: Christmas on the Farm | | Historic Site Tours | Dec 5, 2020 |
| Cancelled: Christmas on the Farm | | Historic Site Tours | Dec 5, 2020 |
| Le Réveillon | | Interpretive Programs | Dec 5, 2020 |
| First Day Hike | | Hiking | Jan 1, 2021 |
| Missouri Bicentennial Pictionary | | Interpretive Programs | Aug 6, 2021 |
| Missouri Bicentennial Jeopardy | | Interpretive Programs | Aug 7, 2021 |
