The Gathering
The Gathering (formerly called the Roundup under U.S. Fish & Wildlife) is a massive gathering of the bison herd held every two years in October. During this time, bison are brought into the corrals for vet checks and genetic testing. As part of the bison herd management plan originally implemented under USFW, individuals deemed surplus are auctioned off to other conservation herds or to private owners. Though the Gathering has been open to the public in the past, there is some concern that large crowds can cause additional stress to the bison. Please keep an eye on our Facebook page for announcements about whether the Gathering will be open to public viewing.
2025 Gathering Information

Notice of Bison Sale – CSKT Bison Range
The Confederated Salish and Kootenai Tribes (CSKT) will conduct a herd health capture event in October 2025 at the CSKT Bison Range. This event is part of our long-term herd management plan to maintain genetic diversity and keep the herd within the Range’s carrying capacity.
As part of this effort, 73 surplus bison (ages 1–3 years) will be offered for sale through a sealed bid auction. Each bison will require an individual bid. The available animals include:
- 11 yearling bulls
- 11 yearling heifers
- 12 two-year-old bulls
- 15 two-year-old heifers
- 16 three-year-old heifers
- 8 three-year-old bulls
Minimum Bid Amounts
- Yearling’s: $800.00 minimum bid each
- Two-year-old’s: $1200.00 minimum bid each
- Three-year-old’s: $1800.00 minimum bid each
A 10% deposit is required with each bid. Deposits must be in the form of a cashier’s check or money order (no personal checks), payable to: Confederated Salish and Kootenai Tribes
Deposits will be returned to unsuccessful bidders only. Successful bidders who decline to complete the sale will forfeit their deposit. Final payment from winning bidders must also be made by cashier’s check, money order, or cash.
⚠️ Please note:
- No guarantees are made regarding the size or weight of animals.
- All bison will be visibly healthy at the time of loading.
- Buyers are responsible for transporting animals.
- A veterinarian will be on site during the event. Costs for mandatory health testing (required for interstate transport) will be the responsibility of the buyer and added to the sale total.
- Buyers should coordinate with state agricultural offices for transport requirements.
Deadline for Sealed Bid Submission: All sealed bids must be submitted physically or post marked to our office by 5:30 pm on the closing date of September 11, 2025.
Public Sealed Bid Opening: Sealed bids will be opened on Monday Sept. 15, 2025 at 11:00AM MST at 406 6th Ave E, Polson MT or on Facebook Live at the CSKT Division Page: https://www.facebook.com/CSKTWildlife.
Notification of Winning Bids:
High bidders will be notified after September 15, 2025.
To request a bid package, contact:
CSKT Wildlife Management Program: 406-883-2888
CSKT Bison Range Biologist: 406-675-2700 ext. 7012
If leaving a voicemail, please include your name, phone number, mailing address, and ZIP code so we can send the bid package to you.
Bison Pickup Deadline:
Purchased bison must be picked up between October 6–9, 2025 (Monday–Thursday only) unless alternate arrangements are approved in advance. Animals not picked up by the deadline may be offered to the next highest bidder.
Auction
During a Gathering, the Bison Range opens bidding to the public. If you are looking to bid, please download this form and send a hard copy to Shannon Clairmont or Dan McClure at the Bison Range Visitor Center.
We will announce the bid submission deadline one month prior to a Gathering. Please do not submit an auction form until the deadline has been announced.
Auction Bids Will Open August 15th 2025
Contact Info
Shannon Clairmont
Bison Range Head Biologist
Shannon.clairmont@cskt.org
406-644-2211 ext 7012
Dan McClure
Bison Range Coordinator
Dan.mcclure@cskt.org
406-644-2211 ex 7270
Bison Range Visitor Center
58355 Bison Range Rd.
Charlo, MT 59824