Regardless of the type of soil that covers it (rock, snow, soil, vegetation, etc.)., The steep terrain, sloping, steep to be transitive (raised or lowered, climbing or down climbing) given certain precautions:
Do not walk ahead of the slope . What forces you to walk in diagonal or zigzag, and forever (especially if it was not possible to go zigzag) must keep a safe distance, enough so that if someone falls, do not drag it to the rest group, and can be stopped or avoided and then rescued by his teammates. Raise or lower diagonal is also more relaxed, and causes less impact to the terrain and our joints.