TRAILS OPEN Fall Hours: 7 am- 5:00 pm. Just a reminder no pets are allowed. Thank you. Our Trails will be closing for the winter season on December 1st.
From publicly posted calendar Checked 16 hours ago
ECO Homeschool Adventures: Wildlife Whodunit: The Pond Caper
Wednesday August 26 @ 10:00 am - 11:30 am - Wildlife Whodunit: The Pond Caper Solve a mystery using samples, tracks, and clues. Description: Calling all…
Forest Playdate
Thursday August 27 @ 9:00 am - 11:00 am - Bring your little one for Reggio-inspired forest play. Various invitations will be offered to spark your child’s…
Volunteer: Native Seed Collecting at TNI
Friday August 28 @ 9:00 am - 12:00 pm - Description: Did you know TNI uses millions of seeds each year to increase biodiversity of the prairies and woodlands…
Moonlight Hike
Friday August 28 @ 8:00 pm - 9:15 pm - Join us on a night hike through the woods. On the trails of the Mississippi Sanctuary and Olin Nature Preserve the…
ECO Homeschool Adventures: Wildlife Whodunit: The Pond Caper
Friday August 28 @ 10:00 am - 11:30 am - Wildlife Whodunit: The Pond Caper Solve a mystery using samples, tracks, and clues. Description: Calling all…
Critters and Crypts: Fall Session
Tuesday September 01 @ 4:00 pm - 6:00 pm - This new program is offered exclusively to 6th – 9th grade students! Critters & Crypts is our weekly Dungeons &…
Seed Collection Workshop
Saturday September 05 @ 10:00 am - 12:00 pm - Description: It is very important for TNI that we collect and use native seed on our property to plant new areas…
Critters and Crypts: Fall Session
Tuesday September 08 @ 4:00 pm - 6:00 pm - This new program is offered exclusively to 6th – 9th grade students! Critters & Crypts is our weekly Dungeons &…
Roaming Naturalists: Heartland Prairie in Full Bloom
Tuesday September 08 @ 9:00 am - 10:15 am - Heartland Prairie in Full Bloom Join Ramona for a leisurely hike at Heartland Prairie (near Gordon Moore Park). The…
Tiny Trekkers: Seeds, Sprouts, & Stems
Tuesday September 08 @ 9:00 am - 11:30 am - Seeds, Sprouts, & Stems Description: Tiny Trekkers is a once a week drop off program for ages 3 - 5. Registration…
Heartland Prairie Hike
Tuesday September 08 @ 5:30 pm - 7:00 pm - Heartland Prairie Hikes are a long-running volunteer-led hike at Heartland Prairie at Gordon Moore Park in Alton.…
ECO Homeschool Adventures: Migration Nation
Wednesday September 09 @ 10:00 am - 11:30 am - Migration Nation Investigate the journey that monarch butterflies make each fall season! Learn how scientists…
ECO Homeschool Adventures: Meadow Magic (6th - 12th)
Wednesday September 09 @ 1:00 pm - 3:00 pm - Meadow Magic The last of the pollinators are out while the pollen is still fresh! Learn about our local…
Telescope Night
Friday September 11 @ 7:30 pm - 8:30 pm - Description: Have an old telescope laying around, but never use it? Always wanted to look at the universe through a…
Missouri Prairie Foundation Fall Plant Sale
Saturday September 12 @ 9:00 am - 1:00 pm - The Missouri Prairie Foundation will hold a native plant sale on Saturday, September 12, 2026 at The Nature…
Yoga + Hike
Saturday September 12 @ 9:00 am - 11:00 am - Description: Moonbird Yoga is headed to the Nature Institute for a 60-minute hike in nature before connecting more…
Tiny Trekkers: Seeds, Sprouts, & Stems
Tuesday September 15 @ 9:00 am - 11:30 am - Seeds, Sprouts, & Stems Description: Tiny Trekkers is a once a week drop off program for ages 3 - 5. Registration…
Critters and Crypts: Fall Session
Tuesday September 15 @ 4:00 pm - 6:00 pm - This new program is offered exclusively to 6th – 9th grade students! Critters & Crypts is our weekly Dungeons &…