When others are lost
If one or more members of your party become separated, a brief reconnaissance search should be initiated. If the missing people are not located after 3–4 hours or longer in remote areas, you should assume that they are totally lost. In this case it is unlikely your party will have the resources necessary to initiate a full-scale search and you should seek assistance as soon as possible.
If communication by mobile phone or other means proves impossible, a self-suffi-cient and preferably fast-moving subgroup should be sent out to the nearest point of civilisation to obtain help, while the others should remain near where the missing people were last seen. They should make camp and keep a visible fire going at all times as a beacon. This reference group must not move until the whereabouts of all the party are known, or until there is definitely no further value in staying in the same place.