Is it safe to build a shelter above treeline?

Assessing the Terrain

When building a shelter above treeline, always assess the terrain for potential hazards such as rockfall, avalanche, or steep drop-offs. Look for a location with a natural windbreak, such as a group of trees, a boulder field, or a low ridge. If you can’t find a natural windbreak, consider building your shelter near a rock wall or a snow block, which can provide some protection from the wind.

Rock Walls and Snow Blocks

Rock walls can be an excellent choice for building a shelter, especially if they’re already partially shaped by natural erosion. Look for a section of the wall with a flat or relatively flat area, and use your gear to create a secure anchor point for your tarp or snow wall. Snow blocks can also be used to create a windbreak, but make sure they’re stable and won’t collapse under the weight of snow or wind. Build your snow block wall at an angle to the wind, with the blocks stacked at an angle to provide maximum stability.

Tarp Anchoring and Wind Protection

When anchoring your tarp, use a combination of natural and artificial anchors to secure it firmly in place. Use rocks, snow blocks, or trees to create a stable anchor point, and make sure the tarp is taut and even to prevent wind from getting under it. Consider building a wind wall using snow blocks or rocks to block the wind from your shelter, and use a tarp or plastic sheet to create a rain fly. Make sure the tarp is anchored securely at the corners and midpoints, and use guy lines or stakes to keep it in place. If you’re in an area with extreme wind, consider building a snow trench or a rock cave to provide additional protection.