California’s New Vertical Frontier: The Unlikely Rise of Sweetwater Heli

The pitch of the helicopter engine rises as the rotors accelerate, and the skids beneath my feet begin to tremble, signaling the transition from the solid earth of Bridgeport, California, to the thin, frigid air of the high alpine. In a matter of seconds, the landscape transforms. We are no longer looking up at the peaks; we are soaring toward them. To the west, the jagged, iconic spine of the Sierra Nevada looms, but our destination lies in the opposite direction. These are the Sweetwater Mountains, a rugged, often-overlooked range straddling the California-Nevada border. For decades, this terrain remained the silent domain of mountain lions and hardy backcountry explorers. As of January 31, 2026, it has become the site of California’s only active heli-skiing operation, a venture that defies both historical precedent and the state’s notoriously stringent environmental regulations.

When the helicopter touches down on a remote landing zone, the transition is jarring. We exit one by one, crouching low in a "heli-huddle" to avoid the rhythmic thrum of the spinning blades overhead. The pilot increases the throttle, and the machine lifts, banking sharply and vanishing over a ridge, leaving behind a "snow-blast"—a blinding cloud of fine, crystalline powder. Silence follows, heavy and absolute. We are standing atop a nameless peak in the middle of a 180,000-acre wilderness, staring down at pristine snowy bowls and glades of ancient bristlecone pines. As I strap into my snowboard, a realization sets in: for the first time in over a decade, the dream of heli-skiing in the Golden State is a reality.

California is a land of superlatives. It is the nation’s most populous state, home to 39 million people, and it boasts some of the tallest peaks in the contiguous United States, including Mount Whitney. Its ski industry is massive, anchored by world-class resorts like Palisades Tahoe and Mammoth Mountain. Yet, despite this pedigree, heli-skiing has been virtually non-existent here. At the start of 2026, there were only seven heli-skiing operations in the entire lower 48 states, located in hubs like Telluride, Silverton, and the Wasatch Range. Sweetwater Heli, the eighth, is the brainchild of an unlikely duo: Mark Johnson, a 63-year-old former NASCAR team manager and lifelong "ski bum," and Brian Kirschenmann, a fifth-generation potato farmer from Bakersfield. Together, they have navigated a labyrinth of federal permits and environmental studies to unlock a sector of the California backcountry that has been effectively off-limits to mechanized skiing for generations.

The scarcity of heli-skiing in California is not due to a lack of terrain, but rather a complex web of legislative and environmental protections. The primary hurdle dates back to the California Wilderness Act of 1984. This landmark legislation, signed by President Ronald Reagan, designated over three million acres of National Forest land as protected wilderness. While the act was a triumph for conservation, protecting vast swaths of the Sierra Nevada from logging and development, it also prohibited motorized transportation and aircraft landings within those boundaries. This effectively "locked out" heli-ski operators from the most iconic peaks in the state.

Previous attempts to bypass these restrictions were short-lived. In 2011, veteran guide Dave "Happy" Rintala launched Pacific Crest Heli-Guides by securing access to private land holdings and mining claims—a "patchwork" approach to territory. However, the logistical nightmare of operating in California’s erratic climate, characterized by "atmospheric rivers" followed by long droughts, proved insurmountable. Rintala shuttered the helicopter wing of his business in 2014, leaving a twelve-year vacuum that many thought would never be filled.

Mark Johnson saw things differently. Johnson, a towering man with a grey goatee and a limp earned from a recent knee surgery, spent years driving U.S. Highway 395 between Lake Tahoe and Mammoth. The route skirts the eastern edge of the Sierra, but Johnson found himself constantly looking east toward the Sweetwater Mountains. Part of the Humboldt-Toiyabe National Forest, the Sweetwaters sit in a unique geographical position. Because they are located east of the main Sierra crest, they fall outside much of the "Designated Wilderness" zones that stymie operations further west. Furthermore, the range benefits from a "high desert" snowpack—drier and more stable than the heavy, wet "Sierra Cement" found closer to the coast.

The partnership between Johnson and Kirschenmann is the engine behind Sweetwater Heli’s success. Kirschenmann, 51, brings the financial weight of a successful agricultural empire and a personal obsession with high-octane adventure. A frequent heli-skier who has tackled slopes in Russia, Greenland, and the Andes, Kirschenmann initially doubted the feasibility of the project. "I didn’t see how it was going to work," he admits, citing California’s regulatory reputation. But a 2023 exploratory flight in an Airbus B3 (A-Star) helicopter changed his mind. The helicopter, the industry standard for high-altitude performance, revealed a landscape of "limitless" potential: massive alpine bowls, steep technical chutes, and perfectly spaced "burn" glades.

Securing the permits required a delicate dance with the U.S. Forest Service and the California Department of Fish and Wildlife. The Sweetwater Mountains are home to sensitive species, most notably the Bi-State Sage Grouse and the rare Sierra Nevada Red Fox. To mitigate impact, the operators agreed to strict flight corridors and elevation floors. They are prohibited from flying below 7,500 feet to avoid disturbing nesting grouse, and several high-elevation "no-fly zones" were established to protect fox dens. In February 2025, they were granted a one-year special-use permit—a probationary period to prove they could be "good stewards" of the land.

My journey with Sweetwater Heli began at 7:30 A.M. at their base in Bridgeport. The atmosphere was one of professional intensity. The guides, a roster of ten veterans with experience in the Chugach of Alaska and the Selkirks of Canada, led us through a rigorous safety briefing. We were issued BCA Float E2-15 avalanche backpacks—cutting-edge gear utilizing supercapacitor technology to deploy life-saving airbags in seconds. This focus on safety was underscored by a recent tragedy: just three days prior, a massive avalanche near Lake Tahoe had claimed nine lives. The snowpack in the region was "finicky," with several feet of fresh powder sitting precariously atop a buried weak layer formed during a mid-winter dry spell.

The guides described the day’s risk as "three-three-two"—considerable at the peaks, but moderate in the lower glades. Consequently, we avoided the high-angle "hero" lines in favor of slopes under 30 degrees. Even on these mellower pitches, the skiing was transformative. The Sweetwaters offer a sense of isolation that is impossible to find at a resort. There are no lift lines, no tracked-out moguls, and no hum of distant machinery. There is only the sound of the wind and the "whump" of settling snow—a reminder of the mountain’s power.

As we moved through our "breakfast laps," the guides assessed our technical abilities. My group’s guide, Max Wittenberg, directed us to maintain strict spacing and to follow his "lead line" to minimize the risk of triggering a slide. By the second run, the pitch increased. We found ourselves in knee-deep powder, the kind of light, "cold" snow that creates a "white room" effect with every turn. The novelty of the experience—doing this in California—was the topic of every conversation during the four-minute flights back to the summit.

Sweetwater Heli’s business strategy is as calculated as their flight paths. They aren’t just targeting the "hardcore" Alaskan demographic. Instead, they are positioning themselves as a premium add-on for the "Ikon Pass" crowd—skiers visiting Mammoth or Tahoe who want a single-day "bucket list" experience. They have even negotiated pickup services from local airports and the rooftop helipad at Caesar’s Tahoe, bridging the gap between luxury travel and rugged backcountry exploration. In March 2026, the operation will expand further, partnering with the Hawthorne Army Depot to access the 11,300-foot Mount Grant in Nevada, bringing their total tenure to over 200,000 acres. This expansion makes them the third-largest heli-ski operation in the lower 48.

The day ended with a sobering reminder of the environment’s volatility. During lunch—sandwiches eaten on a table carved from snow—we spotted the debris of a natural avalanche on a nearby north-facing chute. Later, another group reported a "close brush" when they triggered a small slide on an adjacent slope while strapping in. The guides immediately called for an end to the day’s skiing, a decision met with universal respect from the guests. In the backcountry, ego is a liability.

On the final flight back to the Bridgeport Airport, I was invited to ride in the front seat. The pilot banked the Airbus B3 through a narrow canyon, the orange glow of the late afternoon sun illuminating peaks that had never seen a commercial ski track until this month. Below us, the Sweetwater Mountains looked like an endless white sea. Mark Johnson, who is still recovering from surgery and has yet to ski his own tenure, watched from the base. For him, and for California’s skiing community, this isn’t just a business; it’s the reclamation of a frontier. As the skids finally touched the tarmac, the engine’s whine faded, but the adrenaline remained. California heli-skiing is no longer a pipe dream; it is a high-altitude reality, carved out of the snow and sagebrush of the Great Basin.