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Why there's new hope for Sierra Nevada bighorn sheep to make a comeback

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Why there's new hope for Sierra Nevada bighorn sheep to make a comeback


Scientists say the population of endangered Sierra Nevada bighorn sheep appears to have stabilized after suffering devastating losses during the record-breaking winter of 2022-2023.

Tom Stephenson, who leads the Sierra Nevada Bighorn Sheep Recovery Program, said the number of ewes, or female sheep, counted this summer is about the same as the previous summer.

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Plus, he said, the abundant summer forage helped produce a “good crop” of new lambs — almost 100. And at least some ewes, which are critical for population growth, were spotted in herds that researchers previously feared might have been wiped out.

“Very small numbers,” Stephenson said of those herds. “Nevertheless, even if these populations hang on with a small number of animals, there’s a chance they can rebuild.”

Stephenson estimates the current total population of Sierra Nevada bighorn sheep at between 380 and 400 animals.

Tom Stephenson heads the California Department of Fish and Wildlife’s Sierra Nevada Bighorn Sheep Recovery Program.

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An average winter is good for bighorn

Sierra Nevada bighorn sheep are well-adapted to snowy winters at high altitudes, Stephenson said. But several above-average snow years over the past decade have seriously hampered the species’ recovery.

In the summer of 2023, researchers found that half of the bighorn sheep that were being tracked had died in the previous winter. Most were victims of avalanches, starvation, or mountain lions.

Even with new lambs born that summer, the population dropped by 40%.

But this past winter, the snowpack was average, which “for bighorn sheep isn’t bad,” Stephenson said. “They’re well adapted to a good amount of snow.”

Still, overall the population of Sierra Nevada bighorn is about half what it was at the peak of the recovery program, in 2016.

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How did Sierra Nevada bighorn become endangered?

Before European settlers arrived in the 1700s and 1800s, thousands of bighorn sheep are thought to have occupied the Sierra Nevada, from the Yosemite region south to Mount Whitney and the high slopes of Sequoia National Park.

Domestic sheep brought by Europeans passed on disease to the native bighorns, which had no immunity. By the mid-1990s, there were only about 100 Sierra Nevada bighorn sheep left.

Conservationists ramped up efforts to save the species, and they were listed as endangered by the state and federal government in 1999.

A lone bighorn sheep, a ewe with short horns, walks up a rocky outcropping.

A ewe from the Wheeler Ridge herd southwest of Bishop.

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How the bighorn could recover

Two major factors affecting the Sierra Nevada bighorn recovery are climate and predation by mountain lions. As the climate changes, the Sierra Nevada is expected to experience less snow, on average, but also more intense storms.

Both extremes are problematic for the sheep: too much snow means it’s harder for the animals to find food and more likely they’ll get trapped in avalanches, or move to lower elevations where they’re more vulnerable to becoming a mountain lion’s meal.

Too little snow produces less fodder in the summer to feed new lambs and fatten up their parents to withstand the next winter.

Rather than fret about the unpredictable weather, Stephenson said he’s more focused on the other threat — mountain lions. “When it comes to lion management, we do have an ability to influence that,” he said.

In the early years of the recovery program, mountain lions known to target bighorn sheep were regularly euthanized. That approach became politically unpopular — mountain lions are beloved in California — and the program has since shifted toward relocating lions that prey on bighorns to areas outside of the recovery zones.

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But the process of getting permission to relocate a mountain lion can be cumbersome, Stephenson said. “If we could take those actions as soon as we see a threat, that would be a huge benefit to the [bighorn] population,” he said.





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NEVADA VIEWS: Planning for a resilient economic future

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NEVADA VIEWS: Planning for a resilient economic future


Southern Nevada has a proud history of competing — and winning — through boldness and reinvention. We have developed a world-class tourism economy, built globally recognized brands and demonstrated our ability to rebound from significant disruptions. In today’s fiercely competitive global economy, however, we must intentionally design the next chapter of our economic story. Communities worldwide are continuously enhancing their sophistication, and we must keep pace.

Since joining the Las Vegas Global Economic Alliance in late August of last year, I have consistently heard from community partners that we must diversify and enhance Southern Nevada’s economy. Our goal is to build upon and complement the strengths we already possess.

To achieve this, the alliance, as Southern Nevada’s regional economic development organization and designated Regional Development Agency, is embarking on a comprehensive strategic planning process. This initiative will guide our economic development priorities both in the near and long term, ensuring that we focus on areas that will yield the most positive impact.

The alliance has a history of reinvention, having been established in 1958 as the Southern Nevada Industrial Foundation, later becoming the Nevada Development Authority, and since 2011, operating under its current name in partnership with the Governor’s Office of Economic Development.

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Economic development extends beyond merely attracting companies. It encompasses the ability of local families to access high-wage careers, the opportunity for young people to build their futures at home and the resilience of our economy to withstand disruptions.

Over the past decade, Southern Nevada has made significant strides toward economic diversification, with investment outcomes in 2025 surpassing those of 2024. However, our work is far from complete. While tourism will always be a foundational strength and source of pride for our region, over-reliance on any single sector poses risks. A diversified economy enhances stability, and stability creates opportunities. We are united in our desire for more accessible housing, expanded health care and education, and greater upward mobility for our residents.

This strategic planning effort aims to ensure that the alliance and its partners concentrate on the right initiatives in the right manner. It will validate the region’s target industries and subsectors, narrowing our focus on areas where Southern Nevada has genuine competitive advantages and long-term potential. The planning process will include community interviews, focus groups and surveys to ensure our final strategy reflects the real opportunities and challenges facing Southern Nevada. We will establish flagship goals and a prioritized strategy matrix to direct our attention and resources toward meaningful outcomes.

A crucial aspect of this process involves clarifying roles within the broader economic ecosystem. Economic development is a team sport — when organizations replicate efforts, operate in silos or compete for recognition, the region loses valuable time and credibility, allowing opportunities to slip away. I have witnessed this behavior in various markets, serving as a red flag for prospective companies.

We have already made strides in building partnerships, exemplified by a Memorandum of Understanding signed in November 2025 with the Economic Development Authority of Western Nevada to jointly support economic development education and advocacy for community leaders statewide.

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Our strategic work will also include a organizational assessment of the alliance, evaluating our mission, resource deployment and engagement model. Economic impact requires operational excellence and measurable execution. Most importantly, this plan — which we anticipate completing by late April — will feature a three-year road map with clear timelines, recommended actions and meaningful metrics to transparently track our progress. A longtime mentor of mine often said, “What gets watched gets measured, and what gets measured gets done.”

Las Vegas has always taken the initiative to shape its own future. This strategic plan presents an opportunity for us to do what we do best: come together, think bigger, act smarter and create something lasting. Together, we can build a purposeful and resilient economic future for Southern Nevada.

Danielle Casey is president and CEO of the Las Vegas Global Economic Alliance.



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Nevada State Police averts ‘udder chaos’ in Eureka County

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Nevada State Police averts ‘udder chaos’ in Eureka County


EUREKA COUNTY, Nev. (KOLO) – On Friday, Feb. 27, the Nevada State Police assisted with a cattle crossing on State Route 306 at Interstate 80 in Eureka County.

“While not an everyday part of our job, we like to do our part to assist our local ranchers while keeping traffic from turning into udder chaos,” according to an agency Facebook post. “It was a perfect opportunity to be outside (even if our animal friends were a little moo-dy).”



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Nye County Sheriff urges caution after deadly month on rural Nevada roads

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Nye County Sheriff urges caution after deadly month on rural Nevada roads


A string of deadly crashes in and around Pahrump has prompted Nye County Sheriff Joe McGill to push for more safety measures along dark, sidewalk-free roads.

“The worst penalty is death, if you consider that,” McGill said.

The recent deaths include a single-vehicle rollover on State Route 160 during the morning hours of the last Wednesday in January that killed one person and injured another.

Then, into February, two pedestrians were killed in less than three days.

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The first was a 7 p.m. crash on Quarter Horse Avenue. Investigators believe a 2006 Jeep Liberty was driving on the street when it hit a pedestrian, who was pronounced dead at the scene.

A few days later, this last Saturday, state troopers responded to a crash just after sundown at Charleston Park Avenue. A sedan hit a pedestrian, who was also pronounced dead at the scene.

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Nevada State Police investigators are still investigating both pedestrian cases before more details are released.

McGill said the recent crashes were enough to spur action.

“When the third one came out, I was sitting at home and watching TV. I looked at my wife and I said, ‘We got to do something about this,’” McGill said.

McGill is responding with a reflective vest giveaway, pointing to limited infrastructure as a possible factor. He noted a lack of street lights off State Route 160 and no sidewalks inside the community.

“The only light that you have is the ambient light from houses and cars so it is really dark,” McGill said.

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John Treanor of AAA Nevada said poor visibility can quickly turn dangerous for both drivers and pedestrians.

“It is very easy to be confronted with a situation that you cannot see coming because the visibility might be bad,” Treanor said.

Treanor encouraged pedestrians to carry lights and drivers to be prepared if they end up outside their vehicles in dark conditions.

“Having lights on you. Even carrying a flashlight allows something where a driver can see it,” Treanor said. “If you are a driver, make sure you have the right stuff in your car, in case you do get in a situation where you are on the side of the road and now you are in dark. Make sure you have a kit with some reflectors, some lights. Anything the trunk of your car in case you need it.”

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McGill said vigilance is important even in daylight.

“Any time of the day, you have got to be vigilant. You have to keep aware of your surroundings if you are a walker or on a bicycle or if you are the driver,” he said.

Authorities also urged caution as more people may pull off roads in rocky areas along the route toward Death Valley National Park during springtime blooms, increasing the need for drivers and pedestrians to stay alert.

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