Contours are often puzzling to a beginner in map reading, but knowledge of what they represent may save a party from a weary climb back up a place they have gaily ski-ed down, thinking they could get through but finding an impossible slope or fall of rock which forced them to retrace their steps.

Your La: ever humbly, ED.

" As the launch putt-putt-putt-ed steadily up the river the water gradually became less black, and the factories along the shore gave way to open stretches of country.