Bonner Data Center
Update 6/12/2026:
Missoula County planning staff have reviewed another application from Krambu and deemed it insufficient. The latest application and letter from the County are available under the Documents tab to the right. Krambu will need to submit a complete application before a hearing with the Missoula Consolidated Land Use Board can be scheduled.
The Bonner Data Center project developer is continuing to finalize materials for presentation to the Missoula County Consolidated Land Use Board (MCCLUB). At this time, the public hearing schedule is to be determined, pending receipt of a complete application.
You can sign up to follow this project at the right-hand side on this page. When the new date is determined for the MCCLUB public hearing, project followers and commenters will receive an email.
This project will be reviewed by the Missoula County Consolidated Land Use Board (MCCLUB). This land use board holds their public hearing meetings on the first Wednesday of the month at 6 p.m. in the Sophie Moiese room of the Missoula County Courthouse. There may occasionally be a second meeting in the month, which will usually be the third Wednesday. There will be prior notice. These meetings are always open to the public.
The meeting agenda and related documents will be published on the Consolidated Land Use Board page
Project Overview
Missoula County is reviewing a proposed data center at 9314 Bonner Miller Road as a Special Exception described in Section 11.6.D. of the Missoula County Zoning Regulations. The property is zoned for heavy industrial use.
The proposal involves reusing a portion of the former mill building — commonly referred to as the planer building — for a high-performance computing (HPC) data center. This means most of the development would occur inside the existing structure, with no major expansion of the building footprint. Interior improvements would include constructing specialized rooms to house computer servers and supporting equipment.
The proposed data center would operate continuously, 24 hours a day, seven days per week, with minimal on-site staffing and relatively limited vehicle traffic associated primarily with maintenance and service visits.
The initial phase of the facility is expected to use approximately 7 megawatts (MW) of electrical power, with the potential to expand over time to utilize up to 29 MW, which is the estimated capacity currently available at the site.
Project summary
Current step: Missoula County has requested more information
Application status: Fifth application submitted; Missoula County has requested more information.
Expected hearing: Postponed until further notice
- This project will be reviewed by the Missoula County Consolidated Land Use Board (MCCLUB). This land use board holds their public hearing meetings on the first Wednesday of the month at 6 p.m. in the Sophie Moiese room of the Missoula County Courthouse. There may occasionally be a second meeting in the month, which will usually be the third Wednesday. There will be prior notice. These meetings are always open to the public.
What is being reviewed in this project proposal?
The Special Exception review is required when the use, because of location, scale, required infrastructure or other potential impacts, requires a special degree of consideration and control to ensure such uses are consistent and compatible with the overall community character and whether potential impacts can be avoided or mitigated.
This page has been updated to reflect revised staff analysis of the scope of review. The Missoula County Consolidated Land Use Board (MCCLUB) must not approve a special exception unless and until they find the project application demonstrates all of the following:
The proposed use or development will be compatible with and will not substantially injure the value of adjoining property.
The proposed use preserves the character of the district, and the property is suitable for the proposed use (e.g. can meet the bulk and dimensional standards without requiring a variance).
The proposed use promotes the purpose and intent of the TIF Special District, where appropriate.
Substitute or additional design standards will preserve and protect the area’s architectural and aesthetic qualities.
In reviewing a Special Exception application MCCLUB shall give due consideration to the following:
a) Access, traffic, parking demand, non-motorized transportation and onsite vehicle circulation
b) Dedication and development of streets, rights of way, and public use areas, such as adjoining sidewalks
c) Impacts on or of public and private utilities or services
d) Proposed siting of any new structures necessary to accommodate the use and their relationship to adjoining and surrounding properties
e) Recreation opportunities and open lands available to serve the use
f) Natural resource protections
g) Landscaping and screening requirements
h) Signage and street lighting
i) Noise, vibration, outdoor lighting and other on and offsite impacts from the use
j) Frequency of use and hours of operation
k) Area of land necessary and adequacy of the site to accommodate the use and meet the intent of the district and character of the neighborhood
l) How the proposed use addresses the purpose of the TIF Special District intended to attract, retain, grow and develop secondary value-adding industries
m) Any other unique or relevant circumstances related to the property.
The burden to demonstrate compliance with these criteria falls to the applicant, not the County or MCCLUB.
Reasonable and appropriate conditions may be required to ensure that any potentially injurious effect of the Special Exception on adjoining properties, the character of the neighborhood, the purpose and intent of the TIF Special District, or the health, safety and general welfare of the community will be minimized. Conditions much be based on the criteria for review.
Zoning compliance permit
If a special exception is approved, the developers must apply for a zoning compliance permit. The permit application must demonstrate compliance with the County's data center zoning regulations, including requirements for new renewable energy and e-waste recycling. Zoning compliance permits are subject to administrative review and do not go through public hearing process.
Project review timeline
March 2026: Initial Contact
- Krambu and Missoula County Planning first discussed the proposed data center project.
March 25, 2026: First Special Exception Application - deemed incomplete
- The applicant submitted the first Special Exception application. County staff determined that more information was needed before public review could begin.
April 28, 2026: Second Special Exception Application - deemed incomplete
- The applicant submitted additional materials. County staff continued reviewing the application and identified remaining information needed for completeness.
May 11, 2026: Third Special Exception Application - deemed incomplete
- The applicant submitted a special exception application. Applicant has notified the county that a new application packet will be made available.
June 1, 2026: Fifth Special Exception Application - deemed incomplete
- The applicant submitted a special exception application. County staff determined that more information was needed before public review could begin.
Date to be determined based on application completeness: Public Notice Period
- The County will mail notices to property owners within 500 feet, publish a legal notice, and post notices near the property.
Date to be determined based on application completeness: Consolidated Land Use Board Hearing
- The Consolidated Land Use Board is expected to consider the Special Exception request.
Date to be determined based on application completeness: Possible Permit Review
- If approved, Krambu may then apply for a Zoning Compliance Permit and other required permits.
How can I participate?
Community members are encouraged to stay informed and provide public comment. Comments are most helpful when they address the topics the Land Use Board may consider during Special Exception review, especially potential impacts to nearby residential properties.
Follow this project page if you want be emailed when there are updates with this project.
I don't think that this project is in the community's best interest. I think that it is resource intensive and comes with a high probability of negative environmental consequence. As someone who lives nearby, I feel nervous at the thought of industry like this moving in so close to my home.
I like my water for drinking, not generating deepfakes and slop.
After reading the comments see no offered alternate ideas for the location, just supported reasons for I-we, dont like it. Anything going there will have an impact. So, if its not going to be something moving the region into the future, we should drop another fuel depot, recycling drop off center and a mini-mall of dispensarys- at least it woulnt sit vacant while some agency works quietly on funding for a shelter complex which will get approved without our input. If all the water/enviro change is happening, we'll have to eventually move further away from a tourism/ag base. Data is one option in a cleaner than a steel mill industry choice. Also, A.I. is letting us bloviate here so it isn't all bad...maybe. No, I dont have any financial dog in this hunt.
I feel for the Mill owner, and I understand that it has been hard to find a tenant for his largest building. However, I do not want a data center in our community. After attending the first public meeting and listening to the staff of Krambu speak, I do not feel any sort of confidence that they are being upfront and have our community’s best interest in mind. Most of their answers were vague, at best, and there are still a lot of unknowns around this particular type of data center because it will be one of the first of its kind. This kind of energy sucking and truly unnecessary kind of business does not belong near a residential areas and water sheds. So much more would need to be disclosed for me to be on board with this project, and I do not have confidence that this business has any intention of that.
As a Missoula resident, I do not want this data center. A data center in this location, or any location, puts natural resources, and in turn, local residents, at risk. Montana does not need data centers. Natural resources, water especially, are at a higher risk now more than ever before. Preventative measures are better than damage control. Listen to the people - we DO NOT want this.
There's not strong enough language in the world for how vehemently I am opposed to this project. Montanans don't need— and certainly do NOT want— this huge disaster for our Blackfoot river. We don't want this noise-polluting, energy-sucking monstrosity that will inevitably cause our already sky-high utility rates to go up.
There are other comments highlighting the ethical and social catastrophes that AI cause (see the MIT study on cognitive decline in AI users that at least one other commenter cited). That's reason enough to oppose this project that will create... just how many jobs for the community? Five? Six?
The CEO of the California-headquarted company Krambu called this an "AI factory." Call it what it really is: an urban heat island factory, a noise pollution factory, an online-disinformation factory, a cost-of-living-increasing factory... the list goes on and on.
As concerned neighbors, we are demanding that this project not be approved. There is so very little to gain, and so much to lose. Please, do the right thing for our community and do not approve this awful, awful project.
We don't want or need that here! It will affect and pollute our beautiful river and lands. we will continue to fight it
We don't need an AI data center in Bonner. As a Missoula resident, I am extremely wary of how plans can change from original promises, in terms of energy used, pollution expected and general impact contained. Things like this always balloon more than expected. Allowing this project opens the door to future projects getting pushed through. Once built, this will never go away. It needs to be extremely clear who is benefiting and why. If it is not clear, there is absolutely reason to be concerned.
We should absolutely not approve this. This story has already played out across the country, with the same result every time. This will only result in higher energy prices, environmental degradation, and no notable boost to the local economy. We should take a lesson from the numerous other communities this has happened to, and not allow this project to proceed, especially on the banks on the Blackfoot river, an invaluable treasure to our community. I strongly oppose this plan.
I would like to express dismay that this project is being considered. Several research studies have shown that data centers raise the temperature of the surrounding area (up to 6.2 miles away) by an average of 9.1 degrees. In an era of global warming this seems like a bad idea. Plus I doubt the residents of Bonner will be happy when they experience these higher temperatures.
Also, where is the water used to cool the center going to go? Into the river which does not bode well for fish or fishermen.
I am a constituent living in district 3, Missoula, Montana and am desperately urging you to please do everything in your power to protect our sacred lands, including forests, groundwater, air, and waterways from data centers. Though Montana has signed letters of intent to invite data centers into our state, data centers are a huge draw on public services and increase prices for local governments, residents, and municipalities to support their extreme energy usage. On top of that, these centers do little to nothing to reinvest resources or capital into the local economy. For local residents, including humans and wildlife, they create sound and light pollution, contaminate drinking water, use up valuable freshwater resources for cooling. This effectively destroys fish and wildlife habitat and ecosystems - on which many Montana residents depend for their food and livelihood - as well as reduces availability for agriculture and farming communities who depend on water to grow and raise food. Data centers in Montana would be catastrophic for every single resident. Please do everything you can to require these data centers to generate and use 100% renewable energy at the very least to reduce the financial and energy burden on your constituents.
It should not even be a question that this project needs to be cancelled.
Lack of contribution to the local community aside- this data center is going to result in infrasonic sound waves that are known to cause environmental damage and have effects on HUMAN HEALTH.
Data centers like these, however small, do not belong in populated areas. Full stop.
This project meets Missoula County Zoning guidelines and is an approved use for this property. The property owners need to lease this property. It is a major portion of the property and its occupancy impacts the Mill sites overall viability. Manufacturers are not seeking this Bonner location. We have low wages, high housing costs and huge transportation costs. Ther may not be any other uses for the site except for a data center. The Mill Manager reached out to numerous manufacturers without receiving any interest. This data center will pay an enormous amount of property and business equipment tax. The Bonner School and the Rural Fire Department should be in support of this opportunity. They use minimal water, it's a closed loop system. The noise level is below Missoula County standards. The construction jobs and the data center jobs will be above manufacturing job levels. I support this project.
Please do not go forward with a proposal or contract for this project. Even if a project like this moved forward, it would take years to fully understand the environmental, energy, and community impacts of something like this - and there is already talk of this opening in June. And once its here, its here to stay, as you can read from many other communities that had data centers built in them. They often need more water and energy than initially planned or promised. The company is unclear who their client would be for the data center, and without even knowing a client, how would they be making the promises they are already making on their impact to the community? What's more, with guaranteed impacts on the community and environment, I can't imagine the company has made any guarantees about generating local jobs or giving back to the community. I understand we are in the age of rapidly developing technology with astronomically growing needs, but this site is right next to the Blackfoot, a school, and many houses. I imagine the same promises this company is making now are the same made about the Smurfit-Stone site - and yes, this mill at least provided about 400-500 jobs to the community, but now this sits as an eyesore in our valley, an almost Superfund site, and no end in sight to who will clean it up or when. Bonner would be an awful place for a similar story. https://missoulacountyvoice.com/smurfit-stone-mill-site-cleanup/news_feed/the-smurfit-stone-story
As a Missoula resident I strongly oppose this plan. Building a data center like this has no benefit for our community. This project would pose numerous environmental and health problems for or community and give us nothing. The amount of power required would certainly affect our power supply. The radiation from this large of a center would cause long term health problems for those living nearby. No one benefits from this except the company. Please do not let them take advantage of our community for their own profit.
**Absolutely not.** We have nothing to gain from this and so very much to lose. Other comments here say plenty about that, so I’ll leave it there.
One thing though: on NPR today, the person proposing this data center said that its water requirements would not affect the Blackfoot River because water would come from the ground instead. Except…it’s all connected, from ground water to the river to broader impacts (as is everything). For example, see: https://pubs.usgs.gov/publication/fs20133001
Again, all costs, no benefit. NO to this awful idea!
I strongly oppose the data center. Data Centers like these pose environmental hazards and health risks to our community. This project will cause noise pollution to our Bonner and East Missoula community members and potentially cause long term health effects. The location of this near the Blackfoot river is a huge concern for recreation and one of our city's most valuable assets. Don't even get me started on the potential health impacts for Missoulians living downstream from this. Datacenters are power-hungry and will strain our grid, driving up costs for Missoula county residents. The supposed economic benefits this project will bring will be negligible because AI datacenters simply do not create a significant number of new job opportunities, and any benefits are heavily outweighed by the negative impacts. Don't let this AI company profit at our expense!
MIT did a study proving that artificial intelligence lowers cognitive ability and memory in users. AI has no benefit for our society, and Montana doesn't need that. I spent my entire life in Montana and just recently left for college to study environmental science so I can fight issues just like this. This won't give Missoula more money. Though this data center is supposed to use a "new source of renewable energy", we don't know what that is. For jobs? This will MAYBE provide ten jobs. The thing about artificial intelligence is that it can do all of our jobs. Society doesn't need more artificial intelligence! It's been shown useful in radiology, and only radiology. Generative AI, which is what this database would be used for, provides no benefits that outweigh the cost of mining what's necessary for the computers, the energy required to function, and the water it tends to use to cool down the huge computers. This would ruin views and our recreation around the area of Missoula. The datacenter will generate a constant noise, and people won't be able to enjoy the silence that nature provides.
Don't let this happen.
As a community member close to Bonner, I strongly oppose this AI data center.
The negative impacts to the community far outweigh a data center's possible positive effects. Noise pollution, light pollution and specific land management planning are just some of Krambu’s are clearly missing considerations in their application.
Please decline this contract moving forward as it will damage the Bonner and surrounding communities.
As a community member who lives within a stones throw of the proposed site, I strongly oppose this AI data center.
Negative impacts to the community remain innumerable and unclear, but obvious in their existence. Krambu’s lack of respect for our land, water, and community was clear at the Friends of 2 Rivers meeting.
The people will continue fighting this, so I hope that Mike Heisey will see what is right and decline to move forward with this contract.
I believe the community could come together and support a creative solution to put something in this space that would be beneficial to us all, if the opportunity was given.