IRU Annual Spring Boise River Cleanup
2026-04-11 12:00 - 14:00 (America/Boise) | ID
Idaho Rivers United is hosting stations across the greenbelt from Boise to Eagle to remove debris from the river. They will provide needed supplies, or you can bring your own. Sign up at the Idaho Rivers United website by April 7, 2026

Event is Saturday April 11th 12-2 pm.

City of Boise 2026 Earth Day Event
2026-04-18 10:00 - 14:00 | ID
Visit BREN’s booth at the City of Boise’s Earth Day Event. Saturday April 18th. 10 -2 at the Boise WaterShed. This is a family friendly event so bring the kids!
6411 N. Ancell Avenue, Boise, ID 83714

City Nature Challenge with BREN at Kristin Armstrong Park
2026-04-24 18:00 - 19:00 | kristin armstrong municipal, 500 S Walnut St, Boise, ID, 83712
Join BREN for a relaxed evening walk along the Boise River as part of the City Nature Challenge. Along the way, you’ll hear updates on BREN’s Kristen Armstrong Park Bank Repair Project and learn how iNaturalist observations help grow our understanding of local plants and wildlife. We’ll meet at the shelter at Kristen Armstrong Park for a casual walk-and-talk focused on the river, science, and the place we all care about. iNaturalist allows users to upload photos and recordings of plants and animals for identification to help document biodiversity of an area. No iNaturalist user experience needed, but having the iNaturalist app downloaded on your phone beforehand is recommended.
Friday, April 24 | 6:00–7:00 PM
Kristin Armstrong Municipal Park
5000 S Walnut St, Boise
RSVP on Eventbrite

Cottonwood Gather and Grow and Nature Walk
2026-06-11 18:00 - 19:00 | ID
“The best time to plant a tree was 30 years ago. The second best time is now.”

Join BREN and help plant a tree for our Black Cottonwood Gather and Grow Project! Each June we collect cottonwood seeds, germinate them and in two years those trees are deployed at the Boise River. Many of the cottonwood trees at the river are at the end of their lifespan or are runners from a parent tree, making them genetically the same. Each BREN tree is genetically unique and increases the genetic diversity of the tree canopy creating a healthier system overall.

We will start with a nature walk to collect seeds and talk about our upcoming project at Kristin Armstrong Municipal Park. Volunteers will then plant seeds in our germination trays. All supplies are provided by BREN, we just need you to show up ready to assist! This event goes from 6-7 pm. We will meet near the picnic shelters, watch for the BREN signs. 500 S Walnut St, Boise, ID 83712
