Brains
Planning a twelve-night self-supported mission to a glacier in the heart of the Alaskan wilderness, as we did, is a logistical puzzle that begins long before the first helicopter skid touches the ice. For those who have never ventured into the Great White Silence, a glacier is essentially a massive, slow-moving river of ice, a living landscape that is as beautiful as it is unforgiving. Backcountry skiing in this context means leaving the comfort of chairlifts and groomed runs far behind to travel into remote mountain ranges where you are entirely responsible for your own survival. Rescues are slow and far away, not to mention totally weather-dependent. No weather to fly a helicopter equals no rescue. When our team — comprised of three veteran Finnish snowboarders and me — set our sights on the Tsirku Glacier in the Takhinsha Mountains of Southeast Alaska, we knew we were stepping into a world where the scale is difficult to comprehend, and the margin for error is razor-thin. To navigate this high-stakes environment safely, we relied on onX Backcountry as one of our most strategic tools, using it as a digital scout to bridge the gap between our homes in the French Alps and the jagged, spine-riddled peaks near Haines.
- Related: onX Backcountry Expands Beacon Guidebooks Content With Hundreds of New Ski Routes for 2025-26 Season
The journey from a dream to a functional camp on the ice began with a fundamental shift in how we viewed the mountains. In a place like Alaska, terrain that looks like a small hill on a traditional flat map can actually be a thousand-foot wall of vertical snow. Or ice. For a beginner, the first and most critical step in planning is the Digital Scout phase, utilizing the 3D Terrain mode. This feature allows you to virtually fly through the mountain range on your screen, tilting and rotating the map to see the actual shape and depth of the peaks. Before we ever arrived in the town of Juneau to stock up on gear at Home Depot, we were using these 3D maps to identify a safe perch for our camp. We needed a flat area on a rocky outcropping that was high enough to provide visibility but far enough away from runout zones — the paths where avalanches naturally flow down the mountain. By studying the Tsirku Glacier in three dimensions, we were able to visualize the physical relationship between our tents and the massive 50-degree slopes we hoped to climb, ensuring we wouldn’t be caught in the path of a sliding mountain while we slept.
Once you are on the ground in Alaska, the sheer size of the landscape can be overwhelming. This is where the app’s data layers become essential for anyone who isn’t a professional guide. Safety on a glacier is largely a game of angles, and the Slope Angle Shading feature is perhaps the most important tool for a beginner to understand. This overlay colors the map based on the steepness of the ground: green and blue areas generally indicate low-angle terrain under 30 degrees, which is typically safer, while orange, red, and purple represent the steeper slopes where avalanches are most likely to occur. We were after the purple.
During our 2026 expedition, as detailed in my recent trip report, a massive storm dropped over a meter of new snow onto a fragile layer of frost known as surface hoar. This created a “rose with thorns” situation—the mountains looked beautiful and inviting with deep powder, but the snowpack was incredibly unstable. By toggling the slope angle overlay, we were able to identify safe corridors for low-angle powsurfing on binding-less powsurfboards when the steeper, more enticing walls were too dangerous to touch. This data-driven approach removes the ego from the equation; even when you are staring at a gorgeous line you want to ski, the map provides an objective reason to turn back.
Because there are no cell towers or internet signals in the deep backcountry, the ability to navigate without a connection is a life-saving requirement. We utilized the Offline Maps feature to download high-resolution map tiles of the entire Takhinsha Range while we were still in civilization. Once the helicopter, piloted by a calm professional we nicknamed Slinky, dropped us off and disappeared into the horizon, these downloaded maps became our only link to the geography of the area. In the middle of a freezing storm, when the world turned into a milk jug of white-on-white visibility, we could huddle inside our hand-dug snowcave and see our exact location in real-time. We used digital Waypoints (pins dropped on the map) to mark the location of our tents, our water-melting station, and dangerous, hidden cracks in the ice known as crevasses. Roping up to navigate through blue ice formations is a standard safety procedure, but having a digital breadcrumb trail to follow back to camp when the wind is howling at 60 mph makes the difference between a cold night in a tent and a life-threatening situation.
The true value of this technology was tested during our final push for massive vertical ribs of snow in a zone officially known as the Rooster Tail. After 12 days of digging snowcaves, hauling ice blocks, and living on freeze-dried meals, we had one final sunny window to attempt a world-class line. We climbed a technical 50-degree slope using two ice axes, but as we reached the ridgeline, the app and our own observations confirmed our fears. The wind had created dangerous slabs of snow that could break at any moment. Even though every cell in our bodies wanted to ride those spines, the data we had studied on our screens for weeks, combined with the Finnish snowboarders’ decades of wisdom, led us to the right decision: we bailed. We transitioned to a safer, lower-angle return run that we had already scouted on the app, turning a potentially fatal mistake into a masterclass in mountain patience. This ability to pivot to a safe alternative is only possible when you have a clear, technical understanding of the terrain around you.
In the end, a digital blueprint doesn’t replace the need for physical skills like crevasse rescue or building a secure snowcave, but it sharpens your decision-making and gives you the confidence to explore places that would otherwise be inaccessible. It allows a beginner to manage the mental fatigue of waiting for a weather window by providing a clear, technical understanding of the options available. As I reflected on the mission while the sun set behind the Fairweather Range on our final night, I realized how much the person who arrived on that glacier was different from the one leaving. I had learned to take the ego out of the process, to respect the gulag life of a weathered-in camp, and to trust the data when it tells you to stay home. Whether you are an expert or a novice, the right tools can transform a high-risk expedition into a strategic, successful adventure of a lifetime.
