When stopping on the trail or setting up camp always look up. If you spend any amount of time in the wilderness you pass lots of trees that are not upright any more. Trees and branches can fall at any time, especially if the tree is dying or weakened. The attached photo was taken 4/8/17 at half-way camp. Obviously, the backpackers in this picture did not look up and moved once I told them of the danger they had unwittingly placed themselves in. Always look up!