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Lummis family could cash in on Microsoft data center expansion through Cheyenne land sales

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Lummis family could cash in on Microsoft data center expansion through Cheyenne land sales


Sunlight Research Center’s Michael Nolan and Seraphina Feron provided research and data analysis.

by Angus M. Thuermer Jr., WyoFile

Thousands of acres southeast of Cheyenne owned by and associated with U.S. Sen. Cynthia Lummis lie in the path of Microsoft’s planned data center expansion, Laramie County property records show.

One of Microsoft’s existing data centers — a climate-controlled warehouse of computers, data storage and networks — sits southeast of Cheyenne on land the company purchased from the Lummis family in 2021. In April, the Seattle-area tech giant announced plans to buy 200 acres adjacent to its data center in the Bison Business Park and said it will purchase another 3,000 acres nearby.

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Microsoft displayed a map Thursday at a Cheyenne community information session showing its 3,200-acre expansion. (Carrie Haderlie/Wyoming Tribune Eagle) CLICK TO ENLARGE

Lummis, members of her family and companies associated with them own about 6,000 contiguous acres that almost surround the Microsoft center. Microsoft displayed a map Thursday at a Cheyenne community information session showing its 3,200-acre expansion extending into that Lummis family property.

Microsoft’s pending purchases land at the doorstep of one of tech’s biggest supporters in Congress. Lummis, known as the crypto queen of the Senate, has sponsored at least five significant cryptocurrency, artificial intelligence, blockchain, stablecoin and tech bills. Political action committees associated with her received $1.34 million, including from major cryptocurrency and tech interests, since Dec. 31, 2021 and July 2025, WyoFile and reporting partner the Sunlight Research Center have found.

Microsoft and members of Lummis family — the senator, her brother Doran and daughter Annaliese Wiederspahn — would not comment or agree to interviews about the development or their relationship to the project. The senator’s family has owned much of the expansion property for decades — some dating back to 1944 and before — and has a long history of ranching, real estate transactions and business operations in and around Cheyenne.

Wiederspahn is a board member of Cheyenne LEADS, a corporation dedicated to area economic development, including data centers.

Microsoft’s land-buy announcement comes as Cheyenne is quickly becoming a data-center hub — the city is weighing proposals for 40 to 70 new data centers, according to some estimates — amid questions among area residents about water and energy usage, plus sweeping changes to the landscape. Those concerns prompted the Cheyenne City Council to consider a moratorium on new data centers, but local officials ultimately voted against such a measure.

Lummis has heard those queries, she wrote in a September op-ed.

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“During my travels across Wyoming, countless folks have approached me about AI and the data centers coming to our state,” she wrote. “I tell them the truth: If we don’t power America’s AI with Wyoming energy, China will build their AI dominance on their coal instead.”

Abundant energy and land

Data centers are large, climate-controlled warehouses that contain computers, data storage and networks — used by Microsoft to establish and maintain the Microsoft Cloud, where data is kept. “[Y]ou can store your photos, play Xbox games, video call with your family, and work on documents from anywhere and on any device, without needing a powerful computer,” the company explains.

While some data centers focus on storage, others focus on providing the computing power to operate artificial intelligence. Those servers can also be used for bitcoin mining. 

Wyoming’s coal and potential nuclear power generation are a plus for energy-hungry data centers and AI, Lummis has stated. Wyoming’s cool climate and lack of corporate business tax also fuel data center development near Cheyenne. The state’s open land is another plus for data center development — and Lummis and her family own a lot of it.

“Folks have approached me about AI and the data centers coming to our state. I tell them the truth.”

Cynthia Lummis

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Microsoft established its existing data center southeast of Cheyenne on 249 acres of Lummis-family land in the Bison Business Park in 2021, a subdivision created through a fast-track planning process. Arp and Hammond Hardware Co., whose president is Lummis’ brother Doran Lummis, carved out an adjacent 200-acre parcel in April 2025, a year before the tech company announced its intent to expand there.

Beyond that, Lummis’ family owns almost all the surrounding land — about 6,000 acres of it — including property mapped for purchase by Microsoft and displayed at Thursday’s open house in Cheyenne. The sprawling holdings, most of which are unirrigated rangeland, are owned by Lummis family companies Arp and Hammond, Lummis Livestock Co., Old Horse Pasture Inc. and Sweetgrass Land Co., Laramie County property records show.

A Google Earth view of Microsoft’s data center in the Bison Business Park southeast of Cheyenne. The view from the southwest shows thousands of acres beyond the park that’s owned by companies associated with Lummis and her family. (screengrab/Google Earth)

The expansion, Microsoft said in an April statement, will be “strengthening Southeast Wyoming’s role as a growing hub for technology-driven economic activity, innovation and job creation.”

Crypto Queen

Sen. Cynthia Lummis posted an image of herself with laser eyes, a symbol of focus and new technology. (screengrab/X)

Lummis, elected to the Wyoming House of Representatives in 1979 at 24, was the youngest woman to serve in the Legislature. Voters then elected her to the state Senate, Wyoming treasurer and, in 2008, as Wyoming’s lone U.S. representative. She won election to the Senate in 2020, defeating Democrat Merav Ben-David with 73% of the vote.

Lummis announced in December she won’t seek reelection this year.

While in the Senate, Lummis has advocated for and sponsored legislation boosting cryptocurrencies — virtual money like bitcoin and stablecoins — and supported technology innovators, artificial intelligence and blockchain.

In 2021, “I founded the Financial Innovation Caucus to educate my fellow senators about the vast potential of emerging technologies to promote financial inclusion and build new wealth for all,” she said in a statement that year.

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In December 2022, she placed her shares of Microsoft (valued between $15,000-$50,000) and bitcoin (valued between $50,000-$100,000) in a blind trust “to avoid any conflict of interest or appearance of any such conflict.”

Details about the land sale, including the price, have not been publicly disclosed.


This article was originally published by WyoFile and is republished here with permission. WyoFile is an independent nonprofit news organization focused on Wyoming people, places and policy.

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Wyoming authorities call on Rocky Mountain Power to explain role in massive November power outage

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Wyoming authorities call on Rocky Mountain Power to explain role in massive November power outage


by Dustin Bleizeffer, WyoFile

The massive, multiple-utility power outage last fall that left some 250,000 customers across parts of Wyoming, South Dakota and Montana without electricity was the result of miscommunication and inadequate procedures during planned maintenance that required de-energizing a power line in southcentral Wyoming, according to a report.

The Nov. 13 incident left thousands of homes and businesses without power for 9.5 hours — longer, in some cases — and knocked out a coal-powered generator outside Glenrock. The unit at the Dave Johnston Power Plant remains offline, leaving Rocky Mountain Power to backfill some 300 megawatts of electricity — enough to power about 225,000 homes.

The Dave Johnston coal-fired power plant, pictured on the afternoon of Nov. 13, 2025. (Dustin Bleizeffer/WyoFile)

Without expressly assigning blame to any one party, the report — conducted by the Western Electricity Coordinating Council and the North American Electric Reliability Corporation — indicates a series of communication breakdowns between PacifiCorp (parent company of Rocky Mountain Power), the Western Area Power Administration and, to some degree, electrical grid coordinating teams.

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While it’s unclear whether authorities such as the North American Electric Reliability Corporation might pinpoint fault and assess penalties, the Wyoming Public Service Commission has called on Rocky Mountain Power to appear at a hearing scheduled for 2:30 p.m. Wednesday. The commission wants to hear from the utility about “the specifics and details of the event and report,” a public notice announced, and it “may consider and take any action that is in the public interest.”

The hearing at the Public Service Commission’s office located at 2515 Warren Avenue, Suite 300, in Cheyenne, will also be livestreamed at this link.

What happened

According to the 49-page report published in June, PacifiCorp and the Western Area Power Administration were coordinating maintenance on their respective systems that, together, required temporarily de-energizing PacifiCorp’s Aeolus–Clover 500 kilovolt line, which runs east-west and is anchored, in part, by a substation near Medicine Bow.

The effort also required curtailing some local wind energy from feeding the grid, according to the report. But on the day of the planned maintenance, Nov. 13, there was confusion about whether the Western Area Power Administration would scrap its work, so wind energy wasn’t curtailed as originally planned.

Wind turbines near Cheyenne poke into a colorful sunrise in January 2025. (Tennessee Watson/WyoFile)
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The report indicates that modeling tools might have failed to accurately measure local grid conditions, so when the power line was de-energized, “power flow rapidly redistributed throughout the northeast portion” of the local grid. “Within six seconds,” according to the report, “an electrical island formed and collapsed, causing widespread effects across that portion of the interconnection.

“The disturbance,” the report continues, “culminated in the loss of more than 4,800 [megawatts] of generation from coal, natural gas, photovoltaic and wind resources.”

The cascading power failure began at about 12:45 p.m. on a Thursday, dragging down portions of service territories operated by Rocky Mountain Power, Black Hills Energy, Montana-Dakota Utilities and some rural electric co-ops. 

The report points to failures in communication, process deficiencies and inadequate modeling tools. Wind energy was not “identified as a contributing factor,” according to the report. It credits both battery storage and wind energy throughout the impacted area for supporting “a faster frequency recovery across the interconnection” and for providing “readily available capacity during system restoration.”


This article was originally published by WyoFile and is republished here with permission. WyoFile is an independent nonprofit news organization focused on Wyoming people, places and policy.

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First Alert Weather Days through Sat. for excessive heat, possibly through Wednesday for fire danger

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First Alert Weather Days through Sat. for excessive heat, possibly through Wednesday for fire danger


A dangerous heat wave is pushing temperatures above 100 degrees across western South Dakota, northeastern Wyoming and southeastern Montana, with records already broken in Sheridan. Red flag warnings have expanded to include Gillette, Newcastle, Rapid City and Pine Ridge as gusty winds and low humidity fuel critical fire danger through at least Wednesday.



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Health and elections: Vote like your life depends on it

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Health and elections: Vote like your life depends on it


CASPER, Wyo. — Wyoming ranks 29th in the nation for overall health, according to the America’s Health Rankings 2025 Annual Report. That middling score hides a sharper story, and Wyoming voters have the power to change it.

Wyoming performs well on education and income equality, but it ranks 49th in cancer screening and 43rd for its uninsured rate.

At the same time, voter turnout sits at just 56.4%, below the national average, on ballots that will decide who can bridge the gap.

Those things are related, said Dr. Gabriela Alvarado, a health policy researcher at the University of Wyoming and former RAND Corp. analyst.

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“All the sources are kind of saying the same thing: Wyoming health is not where it should be,” Alvarado said.

While lawmakers write the laws that shape Wyoming’s health outcomes, voters hold the power to change them. Whether it’s increasing preventative care, funding the 988 hotline, preventing maternity deserts or shortening the distance to the emergency room after a workplace accident, voting could be the difference between life and death.

Ripple effects of policy

To vote smarter, citizens need to know the candidates, their plans to tackle the state’s healthcare challenges, and how those plans translate to policy.

The connections aren’t always clear. The cancer screening rate, for instance, is tied to low HPV vaccination rates and Title X–funded reproductive health clinics, Alvarado said.

“Those clinics screen for cervical cancer and administer the vaccine that prevents it,” she said. “Cultural discomfort deepens the gap, because Americans associate the HPV vaccine with sex rather than cancer prevention.”

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Wyoming’s low rates of preventive care are a policy outcome.

Wyoming is one of only 10 states that has not expanded Medicaid, a decision lawmakers have upheld session after session, excluding roughly 9,000 residents who earn too much for the state’s narrow program but too little to afford private coverage.

“That ripples over to all these other indicators,” Alvarado said. “If you don’t have insurance, you’re not going to get a colonoscopy or other forms of cancer screening.”

Dr. Beth Robitaille sees where those people end up. Robitaille is a family physician and interim chief medical officer at the Educational Health Center of Wyoming, a federally qualified health center and residency program with clinics in Casper, Cheyenne and Laramie. 

She said her clinics saw more than 60,000 provider visits last fiscal year, and roughly 20% of those patients are uninsured.

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Uninsured patients who skip routine care because they can’t pay for it, Robitaille said, arrive only when their conditions have advanced. An uninsured diabetic who can’t afford checkups or insulin develops uncontrolled blood sugar. That can lead to a foot wound, then an infection.

“Those infections often end with amputation, which requires hospitalization,” she said. “That hospitalization and treatment become uncompensated care for the hospital.”

Those unpaid bills added up to $141 million in 2024–25, according to the most recent report by the Wyoming Hospital Association.

Who pays when hospitals fail?

Hospitals recoup the losses by charging insured patients more, Robitaille said. Taxpayers who oppose Medicaid expansion as a cost-saving measure are already covering the bill through premiums instead, which impact the broader community.

“The reality is we’re still paying for it,” Robitaille said. “It’s just in a different manner.”

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Her clinic writes off 80%–85% of costs for its lowest-income patients through a sliding fee scale, turning a $140 visit into a $15 charge. Federal funding offsets only part of that.

Robitaille pushed back on a common assumption about who’s uninsured.

“There’s a misconception that it’s all these people taking advantage of the system,” she said. “In 25 years of caring for this population, I find that they are often employed, self-employed or working for small businesses that can’t afford private insurance.”

Michael Shepherd, a political scientist who studies how health outcomes shape politics, said uncompensated care is a leading cause of rural hospital closures nationally.

“That’s everybody’s hospital,” he said. “That’s not just the people who are on Medicaid.”

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The stakes are high in Wyoming, a largely rural state in which farming and ranching — among the country’s most dangerous jobs — depend on nearby emergency rooms when workplace accidents strike. Rural residents already travel twice as far as urban patients for care. In life-or-death situations — such as strokes and heart attacks — every mile and minute counts.

Strained hospitals cut services before they close, Alvarado said, and obstetrics usually goes first.

Nearly 60% of rural hospitals nationwide no longer deliver babies. Medicaid pays for nearly half of rural births, and federal cuts under the One Big Beautiful Bill Act are expected to leave about 10 million more people uninsured by 2034, per the Congressional Budget Office.

Yes, but…

The same law created a $50 billion Rural Health Transformation Program to soften the blow, though researchers estimate it covers only about 37% of the Medicaid funding rural areas stand to lose.

Wyoming’s share is substantial. The state was awarded $205 million in the program’s first year, according to reporting by WyoFile. That’s the second-largest per-capita award in the nation, behind Alaska, and providers can apply for the funds through Aug. 3.

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Eric Boley, president of the Wyoming Hospital Association, told Oil City News that those one-time funds have the potential to be “transformational for struggling hospitals.”

“We may be able to use the funds to strengthen OB-GYN and emergency services,” he said. “Studies show that, with heart attack and stroke, getting care within an hour significantly improves your chances of making a full recovery.”

A vicious cycle

So why don’t bad outcomes produce different votes? Shepherd calls the answer the “rural health spiral.”

“Poor outcomes breed resentment toward government, resentment elects candidates who campaign on it, and those candidates pass policies that worsen the outcomes,” he said. “Instead of voters rallying to correct that course, they often double down on the course that they’re on, and things continue to spiral out of control.”

Alvarado worries that voters aren’t connecting policies to outcomes. 

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“Legislators are there to serve their constituents,” she said. “If we tell our legislators what it is we care about, they know that there’s votes attached to that.”

Breaking the cycle

The mechanism to repair a broken system is the ballot.

Alvarado urged voters to treat elections as a “window of opportunity” when a known problem, an available solution and political will align.

“Whoever wins decides what the Legislature takes up,” she said.

Robitaille framed the choice as a question.

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“Is healthcare a right or a privilege?” she asked. “Depending on where you as an individual stand on that question would affect who you vote for.”

Her advice is to go beyond the commercials, social media posts and yard signs to learn where candidates actually stand, because healthcare touches everyone eventually.

“We all need healthcare at some point, or our loved ones do,” she said. “So it affects everybody.”

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