// Source: "Software Design ...", John A Robinson, Newnes, 2004, page 148.
class mountain : public location {
      float height;
public:
       mountain() {};
       ~mountain() {};
       void load(istream& in)
            {
            in >> name >> latitude >> ns >> longitude >> ew >> height;
            }
       void save(ostream& out) const
            {
            out << name << ' ' << latitude << ' ' << ns << ' '
                << longitude << ' ' << ew << ' ' << height << '\n';
            }
       const float getheight() const
             {
             return(height);
             }
       };