Like domes, tunnels offer good use of internal volume. Stable when pitched end into the wind, but poor at coping with gusts from the side. Dome tents Dome Tents with two or three poles have excellent useable internal volume for their weight, much better than traditional ridge designs. They're also self-supporting, so it's possible to move around once erected. Stability can be a problem on larger models, no matter how many guy lines they have, simply because strong wind can cause them to compress.
Geodesic tents Geodesic tents have poles crossing at different points around the tent.
This spreads the loading when the tent is stressed by winds, and it often means better use of internal volume. They are heavy and designed as expedition tents. Geodesic designs have progressed into hybrids,using the same principles for tunnels as well. Extra strength and wind-spilling is the priority for mountain tents, built for use in harsh conditions. Tents of either type will come with a snow valence - some may have flysheet doors which not only open conventionally, but zip down from the top when the tent is surrounded by deep snow.