SIGNALDATAInsights. For the People.
Preview
Data center campus · about 3.5 miles outside Broadview, roughly 30 miles north of Billings, Yellowstone County, Montana

Big Sky Campus (Big Sky Digital Infrastructure)

Proposed as of Sept. 29, 2026

A proposed AI data center and power campus on about 5,100 acres near Broadview, planned at about 1,100 MW, the largest data center proposal on record in Montana. Also known as: Quantica Infrastructure Big Sky Campus, Broadview data center.

Cite← Montana data centers
Beaverhead CountyBig Horn CountyBlaine CountyBroadwater CountyCarbon CountyCarter CountyCascade CountyChouteau CountyCuster CountyDaniels CountyDawson CountyDeer Lodge CountyFallon CountyFergus CountyFlathead CountyGallatin CountyGarfield CountyGlacier CountyGolden Valley CountyGranite CountyHill CountyJefferson CountyJudith Basin CountyLake CountyLewis and Clark CountyLiberty CountyLincoln CountyMadison CountyMcCone CountyMeagher CountyMineral CountyMissoula CountyMusselshell CountyPark CountyPetroleum CountyPhillips CountyPondera CountyPowder River CountyPowell CountyPrairie CountyRavalli CountyRichland CountyRoosevelt CountyRosebud CountySanders CountySheridan CountySilver Bow CountyStillwater CountySweet Grass CountyTeton CountyToole CountyTreasure CountyValley CountyWheatland CountyWibaux CountyYellowstone CountyBig Sky Campus (Big Sky Digital Infrastructure) · Proposed · 1,100 MW
Power1,100MW reported · stated
Site5,100acres

Who is behind it

ProjectBig Sky Campus (Big Sky Digital Infrastructure)Also: Quantica Infrastructure Big Sky Campus, Broadview data center
Developer and teamBig Sky Digital Infrastructure, a Quantica Infrastructure company (backed by EnCap Investments)
End userNot found in the recordsNot yet named in any record or credited report we have found.

The record, newest first

  1. At a county commission discussion meeting, speakers urged commissioners to act against the project; the county attorney has said the Right to Compute Act limits what the county can do. (Montana Free Press, Oct. 23, 2026; Montana Free Press, Sept. 7, 2026)

  2. The state Department of Environmental Quality asked for public comment on the campus's proposed public water supply well; the comment period was later extended to Nov. 6, 2026. (Montana Department of Environmental Quality, Sept. 29, 2026)

  3. Reporting said preliminary site work, including access roads and a well, had begun, with a first building hoped for in 2029; water permits were still pending. (Glendive Ranger-Review (Miles City Star), Sept. 26, 2026)

  4. Reporting said a district judge sided with the county and kept the initiative off the ballot. (Daily Montanan, Aug. 15, 2026)

  5. Yellowstone County commissioners voted to ask a district court whether a citizen initiative requiring a public vote on data centers could go forward. (Daily Montanan, July 10, 2026)

  6. Quantica filed generation interconnection requests with NorthWestern totaling 7,235 MW, which it says is for planning and will not all be built. (Big Sky Digital Infrastructure (developer), Oct. 24, 2026; Quantica Infrastructure (developer), Sept. 29, 2026)

  7. The letter of intent became public; reporting said serving it would take nearly all of NorthWestern's own generating capacity. (Montana Free Press, July 31, 2025)

  8. Quantica Infrastructure and NorthWestern Energy signed a nonbinding letter of intent for up to 1,000 MW of service in Yellowstone County. (NorthWestern Energy Group, Inc. (U.S. Securities and Exchange Commission), 2026; The Livingston Enterprise (Lee Newspapers), Aug. 6, 2026)

Conflicts and open questions

  • Reported power figures range from 1,000 MW (letter of intent, legislative staff) to 1,100 MW (developer).
  • A Yellowstone County citizen initiative and a request for interim zoning targeted data centers generally; both were driven by this proposal (see moratoriums).

The full record

Status note
The state Department of Environmental Quality opened public comment on the campus's proposed drinking-water well on Sept. 29, 2026 (comments now due Nov. 6); reporting says early site work began in September 2026. No electric service agreement was in place as of August 2026.
Power note
The developer describes a 1,100 MW campus. NorthWestern's July 1, 2025 letter of intent covered up to 1,000 MW; the Legislature's staff presentation lists 1,000 MW. The developer's separate 7,235 MW of generation interconnection requests are power plants, not campus load.
Evidence
Primary public records
Size class
50 MW or more (tracker scope)
Map position approximate, from the reported address or area. Updated Oct. 17, 2026.