Areas of the upper Gibbon River drainage in the central portion of Yellowstone National Park will close for native fisheries restoration work next week. Those areas include Virginia Cascades Drive and Wolf Lake Trail to Little Gibbon Falls.
Campsites in the area however will remain open while access to the sites may be impacted. The closures are necessary for park staff to continue work on a project to eliminate nonnative fish from the upper Gibbon River drainage. Park officials say closures may lift if the project is completed ahead of schedule.
Biologists will remove nonnative rainbow trout and brook trout using the fish toxin, rotenone. Rotenone is a naturally occurring chemical compound derived from the roots of tropical plants. Below the treatment area, biologists will add potassium permanganate to the water to remove the effects of rotenone and prevent impacts to downstream waters. This is the final treatment to remove nonnative fish from this section of river.
- White Pine Resort Debuts New Brand for 2025-2026 Ski Season - December 3, 2025
- Jackson Hole Mountain Resort Opens December 4th: 60th Anniversary Season Kicks Off - December 2, 2025
- Jackson Hole Ski & Snowboard Club 2025 Grand Raffle Tickets Now Available – Win a Sedona Getaway or Premium Fat Bike - November 29, 2025
