If you’re planning on trekking through the Greater Yellowstone Ecosystem this season, you might notice some new decor in the woods, according to a recent National Park Service press release. Starting May 1, the Interagency Grizzly Bear Study Team (IGBST) is kicking off its annual scientific capture operations.
Think of it as a very high-stakes check-up for one of the park’s most famous furry residents.
The Plan (and the Bait)
To keep tabs on how the grizzly population is recovering under the Endangered Species Act, biologists need to get up close and personal. Their method is road-killed deer and elk.
Once a bear decides to RSVP to the free buffet, teams use culvert traps or foot snares to safely secure them. From there, it’s all about the data—health checks, collars, and monitoring—all handled under strict safety protocols that ensure the bears stay as comfortable as a 600-pound predator can be.
Don’t Ignore the Neon
The IGBST isn’t trying to be sneaky. When they’re working in an area, they’ll post brightly colored warning signs at all major access points.
Tip: If you see a sign that reads “Keep Out: Bear Trapping in Progress,” it’s not a suggestion. It’s a literal sign to hike anywhere else. For your safety and the bears’, stay well away from these posted sites.
Fast Facts for Your Hike
- When: May 1 through October 15, 2026.
- Where: Various locations throughout Yellowstone National Park.
- The Vibe: Science in the wild.
- The Rule: If you see a sign, turn around.
If you’re the curious type and want to know more about the research—or if you just want to check the “trapping hotline” before you lace up your boots—you can give them a ring at (406) 994-6675 or head over to the IGBST website.
Stay safe out there, and let the scientists handle the bears. They have the snacks for it.