MAP READING IN BRIEF AND ITS INTERPRETATION

A. GRID REFERENCES IS THE LOCATION OF CERTAIN AREAS OR SPOT ON THE SQUARE GRID REFERENCES. IT IS USUALLY LIKE A CO-ORDINATES IN X-AXIS AND Y-AXIS.  THE READING SHOULD BE (EASTING, NORTHING). THERE ARE TWO TYPES OF GRID REFERENCES

  • FOUR FIGURES GRID REFERENCES (1234)
  • SIX FIGURES GRID REFERENCES  (123 456)

B. SCALE USUALLY STATED ON THE MAP ITSELF EITHER AT THE TOP OR BOTTOM OF THE TOPOGRAPHIC MAP. SCALE RANGES FROM 1: 50, 000 ( 2cm REPRESENTS 1 KM)

C. BEARING IS THE EXACT DIRECTION OF THE PARTICULAR AREA IN DEGREES.BEAR IN MIND ALWAYS MEASURE FROM AS THE STARTING POINT THEN TO IS THE PROJECTION. Example find the bearing of town A to town B

D. DIRECTION INDICATES IN WHICH OF THE CARDINAL POINTS I.E NORTH SOUTH EAST AND WEST US THE AREA.

E. CONTOUR LINES SHOW THE RELIEF OF THE AREAS SHOWING A HIGHLAND OF STEEP GRADIENT ( CONCAVE) OR THE GENTLE GRADIENT( CONVEX). THE INTERVAL GRADIENT SHOW THE  DIFFERENT HEIGHTS OF THE CONTOUR LINE IN METRES.

F. RIVER FEATURES OF THE TOPOGRAPHIC MAP SHOW THE SHAPE OF THE RIVER AND THE PROFILE OF THE RIVER. E.G. MEANDER, MIDDLE COURSE/PROFILE.

G. RIVER PATTERNS ALSO SHOW THE DRAINAGE PATTERNS OF THE RIVER LIKE DENDRITICS, TRELLIS OR RADIAL PATTERNS.

H. HUMAN ACTIVITIES OF THE MAP ALSO CAN BE INDICATED IN THE MAP ITSELF IF YOU SEE ON THE MAP MORE RICE FARMING IT IS A FARMING ACTIVITIES DONE IN THE AREAS.  EXAMPLES OF ACTIVITIES ARE LIKE MINING, FARMING, PLANTATION AND TOURISM