How the Wild Sheep Foundation, Nevada Department of Wildlife, and conservation partners are protecting desert bighorn sheep through wildlife translocation, habitat management, and innovative conservation technology.
In the rugged desert mountains of southern Nevada, an extraordinary wildlife conservation effort is underway to protect one of the state's most valuable populations of desert bighorn sheep.
The Muddy Mountains Conservation Project highlights the challenges of managing desert bighorn sheep populations during prolonged drought and the importance of collaboration between wildlife agencies, conservation organizations, hunters, and private industry.
Located northeast of Las Vegas, Nevada, the Muddy Mountains are home to a remarkably productive population of desert bighorn sheep. The herd has played an important role in efforts to restore wild sheep across Nevada, but years of severe drought have created new challenges for wildlife biologists.
Through a documentary filmed by Matt Dwonch and edited by Aptitude Outdoors for the Wild Sheep Foundation, viewers get an inside look at the wildlife capture operations, conservation partnerships, and science-based management practices helping secure the future of these iconic North American animals.
Why the Muddy Mountains Are Important for Desert Bighorn Sheep Conservation
The Muddy Mountains provide some of Nevada's most recognizable desert bighorn sheep habitat. Steep cliffs, rugged mountainsides, and expansive desert terrain offer the escape terrain and natural environment these animals need to survive.
Rising from approximately 2,500 feet to more than 5,500 feet near Muddy Peak, the region has supported decades of successful wildlife conservation efforts.
One of the herd's most important characteristics is its disease status.
The Muddy Mountains population is recognized by wildlife managers as Nevada's only desert bighorn sheep herd considered free of Mycoplasma ovipneumoniae, commonly known as Movi.
Movi is a bacterial pathogen associated with respiratory disease and pneumonia outbreaks in wild sheep populations. These diseases can cause substantial mortality, particularly among lambs, and create long-term challenges for wildlife restoration.
Maintaining a healthy, Movi-free population is therefore extremely valuable.
The Muddy Mountains herd also demonstrates exceptionally strong reproductive success. According to information published by the Wild Sheep Foundation, lamb recruitment has remained around 40 to 50 lambs per 100 ewes.
This combination of disease status and high reproduction makes the herd an important potential source of animals for desert bighorn sheep translocation projects throughout Nevada.
Protecting the population is about more than preserving the sheep currently occupying the Muddy Mountains. It also means maintaining opportunities to strengthen other wild sheep herds across the state.
Nevada's Desert Bighorn Sheep Recovery: A Conservation Success Story
Desert bighorn sheep once occupied mountainous areas throughout much of Nevada.
However, human settlement, habitat changes, disease, and other historical pressures contributed to significant declines in wild sheep populations across the American West.
By the twentieth century, desert bighorn sheep had disappeared from many portions of their historic range.
Restoring these animals required decades of dedication from wildlife professionals and conservation organizations.
The Nevada Department of Wildlife, working with groups such as the Wild Sheep Foundation, Nevada Bighorns Unlimited, and the Fraternity of the Desert Bighorn, helped establish and rebuild bighorn populations through habitat improvement, wildlife water developments, and sheep capture and relocation projects.
In the Muddy Mountains, conservation investments throughout the 1980s, 1990s, and early 2000s helped create more reliable water availability for desert wildlife.
These efforts contributed to substantial population recovery.
According to longtime conservationist Clint Bentley, the Muddy Mountains had only three bighorn hunting tags available in 1984. Today, the surrounding population numbers in the hundreds.
That recovery is an important wildlife conservation achievement.
However, the same success that helped rebuild the herd has introduced a different management challenge.
What happens when a growing population of desert bighorn sheep encounters years of extreme drought?
How Severe Drought Threatens Desert Bighorn Sheep in Nevada
Desert bighorn sheep are remarkably adapted to surviving in dry, mountainous environments.
Their ability to navigate steep terrain and endure extreme temperatures makes them one of North America's most resilient big-game species.
But even desert-adapted wildlife requires adequate water and nutrition.
Southern Nevada has experienced prolonged drought conditions that have dramatically affected the resources available to wild sheep.
In the documentary, one conservation professional describes a significant shift in regional drought frequency. Approximately 30 years ago, drought conditions might have occurred three years out of ten. More recently, that pattern has appeared closer to seven years out of ten.
The Wild Sheep Foundation's article, When Success Meets Mega-Drought, details how some southern Nevada mountain ranges experienced more than 200 days without measurable precipitation.
The consequences extended far beyond limited drinking water.
Without adequate rainfall, vegetation struggled to grow. The lack of green forage reduced the quantity and nutritional quality of food available to sheep.
As vegetation dried, bighorn sheep increasingly consumed less desirable forage that required additional drinking water for digestion.
This created a compounding problem.
Sheep needed more water at the same time that wildlife water developments were reaching critically low levels.
In December 2024, the Nevada Department of Wildlife conducted emergency water hauls to partially refill 10 wildlife water developments. By January 2025, an additional 23 developments in areas with high sheep densities had been identified as alarmingly low.
The Wild Sheep Foundation committed $100,000 to emergency water hauling and desert bighorn translocation efforts, supporting wildlife managers as they worked to address the crisis.
While supplemental water can help wildlife survive immediate shortages, it cannot replace the rain needed to produce natural vegetation.
That distinction has become central to desert bighorn sheep management in the Muddy Mountains.
Managing a Growing Bighorn Sheep Population During Drought
One of the most interesting aspects of the Muddy Mountains Conservation Project is that the primary challenge isn't a declining herd.
It's an exceptionally successful one.
Desert bighorn sheep in the Muddy Mountains continue to reproduce at relatively high rates, even as drought puts pressure on available habitat.
When wildlife populations grow beyond what the landscape can sustainably support under current conditions, managers must consider ways to reduce pressure on water and forage.
According to Nevada Department of Wildlife biologists, the Muddy and neighboring Black Mountains are managed as a connected bighorn sheep population.
In the Wild Sheep Foundation's conservation report, NDOW Southern Region Game Division Supervisor Froylan Hernandez estimated the combined population at approximately 700 animals, with a management objective closer to 600.
Within the Muddy Mountains specifically, managers have identified a target of 400 or fewer sheep.
Those objectives reflect the need to balance productive wildlife populations with available habitat.
Two important tools help accomplish this:
Wildlife translocation: Capturing healthy desert bighorn sheep and moving them to other suitable habitats reduces pressure on the source population while helping strengthen herds elsewhere.
Regulated ewe hunting: Carefully managed harvest of female sheep helps wildlife managers influence future population growth and maintain numbers within habitat objectives.
Both approaches reflect the principles of science-based wildlife management.
The objective isn't simply to maximize the number of animals on the landscape.
It is to maintain healthy, sustainable populations capable of surviving changing environmental conditions.
Desert Bighorn Sheep Translocation: Moving 39 Sheep to China Mountain
One of the most significant aspects of the Muddy Mountains conservation effort is the relocation of healthy desert bighorn sheep to other portions of Nevada.
During a June 28–29, 2026 capture operation, the Nevada Department of Wildlife captured 39 desert bighorn sheep from the Muddy Mountains.
The group included:
32 ewes
5 rams
2 lambs
These animals were relocated north to China Mountain, where they were used to augment an existing desert bighorn population.
China Mountain had previously experienced wildlife disease challenges that contributed to a substantial decline in sheep numbers. Subsequent disease surveillance supported renewed population augmentation efforts.
By relocating animals from the productive Muddy Mountains herd, conservationists could accomplish two important objectives.
First, the operation reduced population pressure on drought-affected habitat in southern Nevada.
Second, it provided an opportunity to increase the number of sheep and potentially improve genetic diversity in another Nevada herd.
Translocation projects also allow wildlife professionals to conduct health assessments and disease surveillance that provide important information about wild sheep populations.
The operation demonstrates how responsible management of one population can create conservation benefits elsewhere.
How Helicopter Wildlife Capture Works
Capturing desert bighorn sheep in remote mountain terrain requires specialized equipment, trained personnel, and careful coordination.
Helicopter-assisted wildlife capture operations allow professionals to locate and safely retrieve animals from terrain that would otherwise be extremely difficult to access.
Once captured, sheep can be examined, sampled, and prepared for relocation.
Animal welfare and environmental conditions are important considerations throughout the process.
In southern Nevada, summer helicopter capture operations begin early in the morning and continue only while temperatures remain within established safety parameters.
Relocating sheep during the summer can also provide animals moving to higher elevations time to acclimate before colder winter conditions arrive.
These operations are physically demanding and require extensive planning, but they remain an important tool in modern wildlife conservation.
Wildlife Water Developments and Remote Monitoring Technology
For decades, wildlife water developments, commonly called guzzlers, have supported desert bighorn sheep and other wildlife in arid regions of Nevada.
These systems collect and store water, providing a more dependable source during periods when natural water may be limited.
However, prolonged drought can overwhelm even established water infrastructure.
Historically, checking water levels in remote mountain locations required wildlife agency personnel and volunteers to physically travel to individual sites.
That process can consume considerable time, labor, and resources.
Today, technology is helping change the way conservationists monitor these systems.
The Fraternity of the Desert Bighorn pursued Wild Sheep Foundation Grant-in-Aid support for an additional 40 RanchBot remote water monitoring systems.
These devices allow wildlife managers to monitor water levels remotely, improving their ability to identify shortages before they become emergencies.
Instead of discovering an empty water development after animals have already begun experiencing water stress, managers can use monitoring data to plan water deliveries and maintenance more effectively.
This approach can reduce unnecessary travel, improve resource allocation, and allow conservation personnel to focus attention on locations where water is most urgently needed.
Remote water monitoring is especially valuable in desert environments, where rainfall can vary dramatically between neighboring mountain ranges.
Technology cannot create rainfall or restore vegetation on its own, but it can provide wildlife managers with the information needed to respond more efficiently.
The Organizations Supporting the Muddy Mountains Conservation Project
The restoration and management of Nevada's desert bighorn sheep populations would not be possible without cooperation between wildlife agencies, nonprofit conservation organizations, private businesses, and dedicated volunteers.
The Muddy Mountains documentary highlights the importance of these relationships and the resources they provide.
Organizations involved in the broader conservation work featured in the documentary and Wild Sheep Foundation reporting include:
Wild Sheep Foundation (WSF): Provides conservation funding, partnerships, and support for wild sheep management and habitat protection.
Nevada Department of Wildlife (NDOW): Leads wildlife management, population monitoring, research, and translocation operations.
Fraternity of the Desert Bighorn: Supports desert bighorn conservation, wildlife water development, and habitat projects.
Nevada Bighorns Unlimited, Reno Chapter: Supports wildlife conservation and bighorn sheep management in Nevada.
Nevada Bighorns Unlimited, Fallon Chapter: Contributes to Nevada wild sheep conservation and related projects.
Wildlife Habitat Improvement of Nevada (WHIN): Supports wildlife habitat improvement and conservation initiatives.
U.S. Fish and Wildlife Service: Provides federal wildlife conservation expertise and partnership support.
Bergara Foundation: Supports wildlife conservation initiatives through funding from private industry.
The Wild Sheep Foundation's conservation impact reporting also recognizes Elko Bighorns Unlimited and Utah Wild Sheep Foundation among its chapter and affiliate partners associated with the broader effort.
These organizations represent an important principle of wildlife conservation: large-scale conservation achievements require contributions from multiple partners.
How Hunters and the Outdoor Industry Support Wildlife Conservation
The Muddy Mountains project also illustrates the role hunters and the outdoor industry play in funding wildlife conservation.
Organizations such as the Wild Sheep Foundation and Nevada Bighorns Unlimited have long worked to support habitat restoration, disease research, water development, and the return of wild sheep to historic mountain ranges.
Private companies contribute additional resources.
The documentary features the Bergara Foundation, established by Bergara Rifles to help fund wildlife conservation initiatives.
Support from businesses connected to hunting and outdoor recreation helps conservation organizations address wildlife management challenges that extend beyond individual hunting opportunities.
Regulated hunting can also serve as an important population-management tool.
In the Muddy Mountains, carefully controlled ewe hunts help wildlife biologists reduce population growth when drought limits available resources.
Although reducing numbers in a recovering wildlife population may initially seem counterintuitive, maintaining a population within the carrying capacity of its habitat is essential to long-term sustainability.
Wildlife management decisions must consider animal health, reproductive success, habitat conditions, and the ability of the environment to support the herd.
The Muddy Mountains demonstrate why conservation isn't always about increasing wildlife numbers.
Sometimes, successful conservation means maintaining the right number of animals for the conditions they face.
Why Protecting Desert Bighorn Sheep Benefits Other Wildlife
Desert bighorn sheep are among the most iconic wildlife species of the American Southwest.
Their impressive horns, remarkable agility, and ability to survive in difficult mountain environments make them a symbol of wild places.
But protecting bighorn sheep also provides broader environmental benefits.
Bighorn sheep are frequently described as an umbrella species in conservation, meaning habitat protection and management efforts focused on them can benefit other wildlife sharing the same environment.
Projects that improve water availability, protect habitat, and support healthy ecosystems can have value beyond a single species.
The Muddy Mountains are a clear example.
Wildlife water developments installed for desert bighorn sheep can also provide resources for other desert animals.
Habitat management and conservation planning contribute to maintaining the broader ecological systems these species depend upon.
As discussed in the documentary, human activities played a significant role in the historical decline of wild sheep populations.
That history creates an ongoing responsibility to protect the animals and landscapes conservationists have spent decades restoring.
Wildlife Conservation Documentary Filmmaking: Telling the Muddy Mountains Story
Wildlife conservation projects often involve years of research, planning, fundraising, and physically demanding fieldwork.
Much of that work happens in remote locations, far from public view.
Documentary filmmaking provides an opportunity to bring those stories to a wider audience.
The Muddy Mountains Conservation Project documentary was filmed by Matt Dwonch and edited by Aptitude Outdoors for the Wild Sheep Foundation.
The film takes viewers into the field alongside wildlife professionals and conservation partners working to protect Nevada's desert bighorn sheep.
Through field footage, interviews, and conservation storytelling, the documentary explores the relationship between drought, wildlife population management, disease prevention, and the organizations responsible for maintaining healthy wild sheep herds.
For Aptitude Outdoors, documentary editing is about more than assembling footage.
It is about translating complex conservation issues into clear, engaging stories that help viewers understand why wildlife management matters.
The Muddy Mountains project demonstrates how conservation filmmaking can connect audiences with the science, people, and organizations working to protect North America's wildlife.
By combining compelling imagery with firsthand perspectives from conservation professionals, documentaries like this help communicate the importance of long-term habitat management and collaborative wildlife conservation.
The Future of Desert Bighorn Sheep in Nevada
The future of the Muddy Mountains desert bighorn sheep population will depend on continued monitoring, responsible wildlife management, and improvements in environmental conditions.
Despite years of drought, the herd remains an important conservation resource.
Its strong reproductive potential and favorable disease status create opportunities to support additional bighorn sheep restoration efforts across Nevada.
Yet the challenges facing the herd are not going away simply because conservationists have successfully rebuilt its population.
Water availability, forage production, wildlife disease, and habitat carrying capacity will continue to influence management decisions.
The work of the Nevada Department of Wildlife, Wild Sheep Foundation, and their conservation partners demonstrates how proactive management can help wildlife populations withstand those challenges.
Emergency water deliveries, remote monitoring systems, regulated hunting, and wildlife translocations all have a role to play.
Ultimately, however, the long-term health of the Muddy Mountains will also depend on something wildlife managers cannot control: rainfall.
The conservation success of the Muddy Mountains isn't measured solely by how many sheep occupy the landscape today.
It is measured by whether healthy desert bighorn populations can continue thriving on Nevada's mountains for generations to come.
Watch the Muddy Mountains Conservation Project Documentary
Experience the conservation work taking place in Nevada's Muddy Mountains through the Wild Sheep Foundation's documentary.
The film provides a firsthand look at the challenges of managing desert bighorn sheep during prolonged drought and the partnerships that make wildlife conservation possible.
Documentary Credits
Filmed by Matt Dwonch
Edited by Aptitude Outdoors
Produced for the Wild Sheep Foundation
Watch the full Muddy Mountains Conservation Project documentary to learn how science-based wildlife management, conservation partnerships, and responsible stewardship are helping keep desert bighorn sheep on the mountain.
Additional Reading
For more information on the management challenges and conservation efforts described in this article, read the Wild Sheep Foundation's official feature:
When Success Meets Mega-Drought: Managing Desert Bighorns in Nevada's Muddy Mountains
Written by Chester Moore and published in the Wild Sheep Foundation's FY 2025–2026 Conservation Impact report.
