The MT Conservation Calendar is maintained in partnership with the University of Montana Environmental Studies program. Updated daily. REFRESH/RELOAD often. Times are Mountain Time. Links to more info are in bold blue italics. Scan ahead to check for RSVPs, deadlines & rescheduling. All events open to the public (some require registration). NOTE: Click here for other community calendars. 

Email event notices here.… Click here for the Conservation Directory.

Click a month below to view that month:

April 2026
May 2026
June 2026
July 2026
August 2026
September 2026
October 2026
November 2026
December 2026

Click here for links to other community calendars.– more events there !

Click here for recurring events page.

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April 2026

APRIL IS EARTH MONTH — AND Zero Waste Action Month 

Earthrise by Poet Amanda Gorman. . Funny Earth video here.Inspiring Earth video here.

Many dates in April — MT Constitution Road Show info — many sites in MT.

Climate Smart Glacier Country’s Earth Month Calendar here.

Saturday Farmers Markets: Farmers Market Guide &Local Food Guide . Missoula Clark Fork Market restarts May 2.  No markets April 11, 18, 25.

Mondays — Household Chemical Disposal appointments in Missoula from 11 AM to 4:30 PM. Register on  events page of Home ReSource website.

Thursdays — Gatherings at the Living Classroom for hands-on learning about creating a permaculture urban homestead. 5-7 pm, Missoula. Info/RSVP email Kate. 

April 18-23 — International Wildlife Film Festival, Missoula (Roxy Theater & UM).

Now to April 22 — Montana Wildlife Crossings public info tour — expert panel shares info on efforts to make highway crossings safer for wildlife and people. remaining:  4/20 Kalispell, Flathead Community College AT-139, 5:30-8:30pm; 4/22 Ennis, Madison Valley Public Library, 5-8:30 pm .  RSVP here  

April 20 to May 4,  Mondays — Seminar series on Aquatic Ecology by applicants for the position of Flathead Lake Biostation director. 11am to noon in University of Montana Chemistry building room 212.

April 20-24 — Climate Week at MSU. Free/all welcome. talks, concerts, hikes, films, e-vehicles, campus cleanup.

April 21  (Tues) — Earth Week Sustainability Fair at UM. 11:30 – 2pm on the Oval. tabling, tours, activities.

April 21 — Arbor Day Celebrations & Tree Planting at State of Montana Arboretum, UM Campus, 1pm on the Oval east of Rankin Hall. Rededication of the Clancy Gordon tribute tree, replacing one lost in 2024 wind storms.

April 21 — Deadline to Comment and Public Hearing on proposed rulemaking for feasibility allowances for nondegradation  of state waters (as called for under HB 685). 11 am at 2401 Colonial Dr, Helena and via zoom. Info here.

April 21 — MT Natural History Center FUNdraiser Lunch. 12:30-2:30 pm at Home Arts, Missoula Fairgrounds. Info/tickets.  

April 21 — Recreation effects on wildlife & connectivity. a talk by Dr. Kathy Zeller, Wilderness Society. noon to 1:15 pm at Missoula Public Library, 4th floor. Hosted by Center for Large Landscape Conservation.

April 21 — Be a Citizen Scientist on the Indreland Audubon Preserve (Bozeman).  5:30-7pm.  hands on activities with Audubon and MSU researchers and  a behind-the scenes view of Montana’s only urban wetland preserve. Info/ register

April 21 — Speaker series on North Fork Flathead River history. 5:30-6:30 pm, Jersey Boys Pizzeria, US 93 S, Whitefish.

April 21-24 — MT Aquatic Research Colloquium at Flathead Lake Biostation. Register by Apr 6.

April 21-28 — Community Meetings on Lolo National Forest Plan Revision. 4/21 Thompson Falls; 4/22 Seeley Lake; 4/23 Superior; 4/27 Missoula; 4/28 Virtual (via TEAMS link). 5:30-7pm (except Superior which is 5-6:30pm . More info  here. 

April 22 (Wed)  — Earth Day — 2026 theme:  Our Power; Our Planet

April 22 — River Cleanup & self -guided tour of beautiful Clark Fork River floodplain  at Missoula’s Reserve Street bridge. anytime 9am to 2pm. This may be the only day this year that the area is open to the public. Hopefully, it may have public trails someday. Info here.

April 22 — Earth Day Highway Cleanup near Lolo Creek. 9am-noon. Meet at Roper’s Lounge parking lot. 10565 US Highway 12 Ste B, Lolo.

April 22 — Earth Day Rally at UM noon to 1pm  on the UM Oval. All welcome.

April 22 — The Blackfeet Environmental Office hosts its 55th Annual Earth Day and Arbor Day Celebration. 9am-3pm. at Stick Game Arbor, Browning.

April 22 — Restoring &  creating wetland habitat in the Last Best Flyway. Mark Mariano, MT Wetlands & Waterfowl. 4-5 pm at MT Tech’s Chem/bio building 102 and on TEAMS.

April 22 — Conserving the little critters Bryce Maxell, MT Natural Heritage Program shares how to access and add to information on invertebrates — both native & invasive — to guide conservation efforts. 6:30 pm at Missoula Butterfly House/Insectarium. Info/tickets.

April 23 (Thurs) — Mount Jumbo Wildflower Walk  with MT Natural History Center. 4-5:30 pm. Missoula.

April 23 — Free Screening of documentary Earth’s Greatest Enemy at University of Montana’s University Center Theater (3rd floor). Doors at 6pm; Intro 6:15pm; Film 6:30-8:30pm. Impacts of the military-industrial complex on people & planet.  Learn actions you can take from Students for Nuclear Disarmament, Climate Response Club, Rankin Peace Center, Vets for Peace and more.

April 23 — Gallatin Valley Earth Day hosts film showing at 7pm; reception/silent auction at 6pm. Emerson Center for Arts & Culture, Bozeman.

April 24 (Fri) — Hands on the Land volunteer work day at Moon-Randolph Homestead in Missoula’s North Hills. noon-5pm. Lunch & carpooling available. Sign up here.  Questions? Contact mari@fvlt.org.

April 24 — Arbor Day Tree Planting in Bozeman, noon – 3pm. Brookside & Westbrook Park

April 25 (Sat) — Gallatin Valley Earth Day Festival (10am-2pm) & 5K Fun Run (9am) at Gallatin County Fairgrounds. See gallatinvalleyearthday.org  and scroll down to the Festival & Fun run notices.

April 25 — Missoula  Phlox Fest . 10am-2pm at Rocky Mountain Gardens, 1075 S. Ave. W.  Free & family friendly. Music, food, plant sales, info on the Garden City’s history & future of gardens.

April 25 — Free Cycles BIKE  BAZAAR/Sale/Swap! free helmets & kid bikes; low cost bikes. 10 am to 5pm at 732 S 1st W, Missoula. 

April 25 — Billings Sustainability Earth Day Fair. 11am-5pm in People’s Garden, Metro Gardens.

April 25 — University of Montana Big Service Event  1-5 pm and Celebration 5-10 pm, UM Oval.

April 25 — Help Friends of the M-Trail improve the trail. A bucket brigade will carry gravel-clay to first 200 feet of trail. Meet at trail head at 1pm, hope to be done by 3:30pm. Bring gloves, water bottle,  and RSVP so we have enough buckets. RSVP to MTrailvolunteer@gmail.com

April 28 (Tues) — Spring Tour of Native Plant Garden at Ft. Missoula<–info 9-11 am.

April 28 — Climate Smart Missoula’s Climate Ambassadors Training. 8:30-10 am. Confluence Center, 119 W. Main, Missoula

April 28 — Authors of Saving the Big Sky   share the story of this book.  4 – 5 pm in University of Montana Forestry building 106. All welcome.

April 28 — Citizen Science in our streams.   5 to 7 pm at UM’s Native American Center rm 103, Missoula. Open to all. Hosted by Watershed Education Network.   RSVP/zoom link here.

April 28 – Bear Aware Workshop – learn how to stay safe when encountering wildlife on trails. 5-6:30 pm at Seeley Lake Senior Center. Hosted by Scenic Montana Trails. sign up. 

April 28 — Community Meeting on Lolo National Forest Plan Revision.   5:30-6:30pm. Virtual on TEAMS

April 28 — UM’s Climate Change Studies program’s Climate Symposium. 6-8 pm in Honors College. student project presentations.

April 28 — Riparian Walk in Bozeman, 6-7:30 pm.

April 29 — Free screening of Plastics Detox   (trailer) | Doors 6pm | Film 6:30 pm | Community discussion 8 pm.  Free Cycles, 732  S. 1st W. Missoula.  How & Why to reduce your family’s exposure to plastics.

April 29 — Status/threats to Grizzly Recovery – talk by bear scientist Chris Servheen. 6:30-8pm, in  Missoula.  

April 29-30 — Aquatic Invasive Species short course offered by Missoula County at Exploration Center, 1075 S Ave. W, Missoula. speakers, workshops, demonstrations.

April 30 (Thurs) — Tour of the Montana Arboretum  (on UM campus). 1:30-2:45 pm. meet at the Root —  west of the University Center and north of Main Hall.

April 30 — Free screening of The Water Keepers — documents how tribal scientists secured historic water rights for the CSK tribes.  4-6 pm at Jeannette Rankin Peace Center. 519 S. Higgins, Msla.

April 30 — Glacier-Two Medicine Alliance Social. includes a talk on trumpeter swans.  5:30 pm at Goodworks, 129 W. Alder, Missoula. RSVP by April 23 to Donna. 

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May 2026

May is Bike Month — Missoula Parks & Rec offers guided bike tours. May 6,13,20,27 at noon.

Saturdays– Outdoor Farmers Markets restart. See  Farmers Market Guide & Local Food Guide .

Sundays (starting in May):  Volunteering at Fort Missoula Native Plant Garden

May 2 (Sat) —Bird Walk (8-9:30am) &  DIY Apple Tree Grafting, 10am- noon at Missoula Rocky Mountain Gardens (Fairgrounds).

May 2 — Fence Pull at Duncan Drive Trailhead, Missoula. Help remove old barb wire fence that traps wildlife. 9am – noon. Info  & signup here.

May 2 — Opening Day at Moon-Randolph Homestead in Missoula’s North Hills. 11 am – 5pm

May 2 — Conversation with Conservation leader Smoke Elser– anytime between 10am & 3pm. Smoke’s barn, 3800 Rattlesnake Drive, Missoula.

May 2 — Five Valleys Land Trust Banquet & Auction. 5-9:00 pm at UM’s Adams Center, Missoula.

May 5 (Tues) — Short Course on Hydric Soils (free). Bozeman. Info here.

May 6 (Wed) — Upper Clark Fork Streamflow Working Group  meets. 10 am to 12:30 pm. Powell Community Center, Deer Lodge

May 7 (Thur) –- Dog Poop Cleanup  Bozeman, 4-6pm.  Info/RSVP  to help.

May 7 —An Evening to Protect Roadless Wildlands.   6-7:30 pm Holiday Inn Parkside Ballroom. Doors open at 5:30 pm. Speakers include frontline defenders of our public lands. Take action to protect USFS roadless areas. Submit your public comment on proposed rule at this event.

May 7-11 — Global Earth Repair Convergence. Online (& in-person at Port Townsend, WA). Heal the Earth.

May 13 (Wed) — End of Semester Thrift Sale at UM. 9am – 2pm. Schreiber Gym.  Students donate items they no longer need; you get a great deal, and less waste to the landfill.

May 13 — Tree Planting in Missoula’s Northside Neighborhood. 10am – 2 pm. Info/sign up to volunteer.

May 14 (Thurs) — Spring Potluck of Native Plant Society–Clark Fork Chapter. 6:30 pm at Pineview Park Pavilion in Missoula. Bring your own utensils & a dish to share. No alcohol.

May 15 (Fri) — Jeannette Rankin Peace Center’s annual Peace Party. 5-9pm in Univ. of Montana’s Education Building. Info & tickets.

May 16 (Sat) — Gallatin Watershed Spring  Cleanup  10 am – 12:30pm followed by Celebration 12:30 -2:30 pm.  Bozeman. Info/signup

May 16 — Resilient Homes Tour — see how Missoulians have made their homes climate change resilient.  2-4pm tour; 4-5pm happy hour. Info/RSVP

May 16 — Springo FUNdraiser for Missoula Urban Demo Project. Play bingo & win garden tools. 4-7pm at Rocky Mountain Gardens.

May 18 (Mon) — UM Retirees perform cleanup on Highway 200, meet at Comfort Inn, 1021 E. Broadway at 10 am. Register here to attend.

May 20 (Wed) — DNRC Seedling Nursery leftover seedling sale. 8am.  2823 Spurgin Rd, Building G, Missoula.

May 29 (Fri) — Walking audit for bike-ped safety on Reserve St, Missoula. 4-5 pm . Info here.

May 30 (Sat) — Great Day of Gardening.  Help get Missoula’s community gardens ready for the growing season. 10am to 1pm. Info/signup here

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June 2026

June 12-14 — MT Audubon’s Wings Across the Big Sky Birding Festival. Kalispell. Over 30 field trips!  Info here.

June 18  (Thurs) — Flathead Lakers Annual Meeting. 5-7:30 pm, Barn at Finley Point.

June 23 (Tues) — Free screening of The Little Things that Run the World (by High Plains Films). 7:30 pm, Roxy Theater, 718 South Higgins, Missoula. Info/Reserve your seat here. 

June 26-28 — MT Native Plant Society Annual Rendezvous, Homestake Lodge along the Continental Divide just east of Butte. Theme: Botany on the Batholith. Deadline to register is June 10.

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July 2026

July 15 (Wed) — Upper Clark Fork Streamflow Working Group  meets. 10 am to 12:30 pm. Powell Community Center, Deer Lodge

July 16 (Thurs) — Flathead Lake Biostation Lake Cruise .   5-7pm.

July 23 (Thurs) — Native Seed Collecting Workshop offered by MT DNRC Nursery, Missoula. 5:30 pm. Email Teagan for info.

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August 2026

August 6  (Thurs) — Flathead Lakers’ Summer Soiree (FUNdraiser), Flathead Forever in Big Arm.

Aug 7 (Fri) — Flathead Lake Biostation Open House. 11am-3pm.

Aug 8 (Sat) — Flathead Waters Annual Cleanup.  Info. 

Aug 14 (Fri) — MUD (Missoula Urban Demo) Project Sustainability Fair at  Missoula’s Ogren Park at Allegiance Field (where the Paddleheads play).

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September 2026

Sept 14-18 — Watershed Tour — Responsible Practices to Protect Water Quality. Offered by MT Watershed Coordination Council . Info/register.   Includes Butte, Hamilton, Missoula, Kalispell, Flathead

Sept 16 (Wed) — Upper Clark Fork Streamflow Working Group  BBQ, meeting, tour. 2pm to 8pm. Check back to confirm place & time.

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October 2026

Oct 3 (Sat) — Home Resource’s Zero Waste Awards. Missoula. check back for info.

Oct 13-16 — Wild Trout Symposium XIV — Managing Wild Trout in a Changing Environment. West Yellowstone. American Fisheries Society — Western Division.

October 27–29 — Montana Pesticide Stewardship Partnership Program (PSPP) Annual Meeting. Flathead Lake Biological Station, 32125 Bio Station Ln, Polson. Connect with researchers, agencies, stakeholders; share data, strategies, solutions for pesticide stewardship. Info/questions:  janelle.groff@flbs.umt.edu 

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November 2026

Nov 18 (Wed) — Upper Clark Fork Streamflow Working Group  meets. 10 am to 12:30 pm. Powell Community Center, Deer Lodge

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December 2026

Events coming soon.

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Other Community Calendars (links) –LOTS more events on these.

Email updates here.

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