Data Centers Atlas: Montana

Scheduled date: Big Sky Digital Infrastructure Campus

Scheduled date: October 29, 2026

Scheduled event: Montana DEQ lists October 29, 2026 as the public-comment deadline for the proposed Big Sky Campus well and associated environmental review. This is not a hearing, an approval or proof of construction.

A recorded date retains its original source and phase scope. A scheduled date does not confirm that the event happened or permission was granted. Source-check dates are separate.

deq.mt.gov

Dated record: Krambu Bonner Data Center (former UFP Edge building, Bonner Mill Industrial Park)

Recorded event date: June 1, 2026

The original Missoula County Bonner project timeline identifies June 1, 2026 as submission of the fifth special exception application and states that it was deemed incomplete. This application history is separate from the undated later withdrawal update and does not establish approval or operation.

A recorded date retains its original source and phase scope. A scheduled date does not confirm that the event happened or permission was granted. Source-check dates are separate.

missoulacountyvoice.com

Dated record: Sabey Data Centers Butte Campus (Montana Connections)

Recorded event date: February 11, 2026

The original Butte Silver Bow committee page reports that the Council granted Sabey a six month extension on February 11, 2026. This is an extension account without independently read completion, an inferred expiration day or a computing commissioning date.

A recorded date retains its original source and phase scope. A scheduled date does not confirm that the event happened or permission was granted. Source-check dates are separate.

www.bsbmt.gov

Public concern on the record: Silver Bow County

Montana Environmental Information Center reported Butte community questions about data-center water demand, drought, wildlife, electricity costs and access to project information. Its account discusses existing and proposed facilities without a verified assignment of each question to a particular campus. This is an area-level public-group record, not measured harm, an agency violation or an allegation assigned to every Silver Bow County site.

Record status: unknown. The present disposition of these area-level resource and transparency concerns is unknown in this bounded group-source review. Submitted questions, forecast demand and general regulatory proposals do not establish actual water or electricity effects, an agency finding or resolution of every concern.

Event date: Not established

Source publication date: December 15, 2025

Disposition date: Not established

Concern sources checked: October 18, 2026

The group report refers to an October16 community event without an independently verified explicit event year. The exact event date remains unknown, rather than inferred from publication. The original group article is dated December 15, 2025 and identifies its December2025 issue. January16,2026 is modification, not a new event. The evolving resource page first-publication day is unknown.

Raised or recorded by Montana Environmental Information Center.

Counts describe attributed documentation, not harm or severity. Allegations, procedural outcomes and published replies retain their separate scope.

Dated record: NYDIG DFM Kraken Central Site

Recorded event date: November 15, 2025

The original DEQ cover and permit state that Kraken permit 5262-05 became final and effective on November 15, 2025. This is an administrative permit date rather than a first computing opening or measured compliance finding.

A recorded date retains its original source and phase scope. A scheduled date does not confirm that the event happened or permission was granted. Source-check dates are separate.

deq.mt.gov

Dated record: Atlas Power Butte Data Center

Recorded event date: December 19, 2024

NorthWestern Energy original December 19, 2024 announcement describes existing Atlas Butte transmission service and forecasts additional energy supply beginning in 2026. This dates the announcement without certifying accomplished delivery, expansion or computing commissioning.

A recorded date retains its original source and phase scope. A scheduled date does not confirm that the event happened or permission was granted. Source-check dates are separate.

northwesternenergy.com

Dated record: Vision Net Billings 2 (1030 Central Avenue)

Recorded event date: September 7, 2022

Vision Net original release is dated September 7, 2022 and invites a September 9 Billings open house. This dates the invitation rather than independently verified completion of the ceremony or a first computing opening.

A recorded date retains its original source and phase scope. A scheduled date does not confirm that the event happened or permission was granted. Source-check dates are separate.

vision.net

Dated record: Bitzero Polson Data Center (SKQ/Salish-Kootenai Dam)

Recorded event date: June 2, 2022

The Montana Governor original June 2, 2022 release announces proposed Polson computing investment. This is an announcement date without proof that construction or computing service subsequently began.

A recorded date retains its original source and phase scope. A scheduled date does not confirm that the event happened or permission was granted. Source-check dates are separate.

news.mt.gov

Public concern on the record: Krambu Bonner Data Center (former UFP Edge building, Bonner Mill Industrial Park)

Residents said in selected public comments on the original Missoula County Bonner project page that they opposed the proposed Krambu facility because of potential noise, water effects, utility costs, nearby schools and community compatibility. These are attributed public concerns rather than County findings of measured harm. The complete comment history and exact comment dates were not independently reviewed.

Record status: unknown. The original County page records public concern and an undated property owner withdrawal update. This does not independently establish the complete concern disposition, removal of every future proposal or measured harm.

Event date: Not established

Source publication date: Not established

Disposition date: Not established

Concern sources checked: October 24, 2026

The original page displays relative public feedback timestamps. Exact comment days and the later property owner withdrawal day are not independently established in the selected body. No exact publication day for the current County project update and selected public comments is independently printed in the read body. Retrieval day is not an event or publication day.

Raised or recorded by Residents.

Missoula County original Bonner project and public feedback account

Counts describe attributed documentation, not harm or severity. Allegations, procedural outcomes and published replies retain their separate scope.