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Recognising landforms - Wiley · Recognising landforms At rst glance, ... identify whether the land...

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18 400 600 800 1000 1200 400 600 800 850 400 600 800 1000 1200 800 1225 200 400 600 800 1000 1275 1050 200 Greystone River Recognising landforms At first glance, topographic maps may appear confusing, as they contain a lot of information and have their own language and symbols. Contour lines on a topographic map join places that are the same height above sea level. They form patterns that show the shape of the land. By examining the contour lines and the distances between them, it is possible to identify whether the land is flat or gently sloping or has steep hills and valleys. Contour lines represent a three- dimensional landform on a two- dimensional map. A skilled user of topographic maps can recognise the patterns of these contour lines and visualise the shapes of landform features. Some of the more recognisable landforms are shown in C . An extensive area of flat land higher than the land surrounding it. Contours surround an area with few or no contours. A high, round piece of land. Contours form a round or oval shape. A finger-like ridge that sticks out from the side of a hill or mountain. Contours are U- or V-shaped, pointing away from high land. Low land between hills or mountains, usually with a river through it. Contours form a U or V shape. The bottom of the V or U points upstream. A steep, almost vertical rocky slope. Contours are very close together, almost on top of one another. A long, narrow piece of higher ground with sloping sides An area of low land between two peaks. On maps it is often the lower area between two circular contour patterns. Contour (contour interval 200 metres) River Spot height (in metres) 1275 Ridge Round hill Saddle Cliff Valley Spur Plateau DISTINCTIVE CONTOUR PATTERNS C C C C C C C C C C C C C C C C C C CLIFF F F F F F F F F F F F F PLATEAU A A A A A A A A A A A A A ROUND HILL A B B B B B B B B B B B B SPUR H H H H H H H H H H H H SADDLE D D D D D D D D D D D D D D D RIDGE E E E E E E E E E E E E E E E VALLEY G G G G G G G G G G G G G G G Jacaranda Page Proofs
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Page 1: Recognising landforms - Wiley · Recognising landforms At rst glance, ... identify whether the land is at or gently ... dimensional landform on a two-dimensional map. A skilled user

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400

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1000

1200

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1225

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800

1000

1275

1050

200

Greystone

River

Recognising landformsAt � rst glance, topographic maps may

appear confusing, as they contain a

lot of information and have their own

language and symbols. Contour lines on a

topographic map join places that are the

same height above sea level. They form

patterns that show the shape of the land.

By examining the contour lines and the

distances between them, it is possible to

identify whether the land is � at or gently

sloping or has steep hills and valleys.

Contour lines represent a three-

dimensional landform on a two-

dimensional map. A skilled user of

topographic maps can recognise the

patterns of these contour lines and

visualise the shapes of landform features.

Some of the more recognisable landforms

are shown in C .

An extensive area of � at land higher than the land surrounding it. Contours surround an area with few or no contours.

A high, round piece of land. Contours form a round or oval shape.

A � nger-like ridge that sticks out from the side of a hill or mountain. Contours are U- or V-shaped, pointing away from high land.

Low land between hills or mountains,usually with a river through it. Contoursform a U or V shape. The bottom of theV or U points upstream.

A steep, almost vertical rocky slope. Contours are very close together, almost on top of one another.

A long, narrow piece of higher ground with sloping sides

An area of low land between two peaks. On maps it is often the lower area between two circular contour patterns.

Contour(contour interval 200 metres)

River

Spot height (in metres)1275

RidgeRound hill

Saddle

Cliff

Valley

Spur

Plateau

DISTINCTIVE CONTOUR PATTERNSCCCCCCCCCCCCCCCCCC

CLIFFFFFFFFFFFFFFFFF

PLATEAU

An extensive area of �

AAAAAAAAAAAA ROUND HILL

A high, round piece of land. Contours form a

BBBBBBBBBBBB

SPURHHHHHHHHHHHH

SADDLEDDDDDDDDDDDDDDD

RIDGEEEEEEEEEEEEEEEE

VALLEYGGGGG GGGGGGGG GGGGGGGGGGGGGGGJaca

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Page 2: Recognising landforms - Wiley · Recognising landforms At rst glance, ... identify whether the land is at or gently ... dimensional landform on a two-dimensional map. A skilled user

19

BU

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SK

ILLS

Re

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rms

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79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98

0 2 4 6 8 10 12 14kilometres kilometres

SCALE 1 : 100 000

1 Examine the table below. Match the landform in the � rst column

with the correct description in the second column.

Landform Description

Gentle slope The lower area between two circular contour patterns

Valley Long, narrow piece of land. Contour heights descend on either side.

Spur Contours form circles.

Steep slopes or a cliff Contours form a V shape pointing uphill.

Small hill Contours form a V shape pointing downhill.

Saddle Flat area surrounded by contours that are close together

Plateau Contours are close together.

Ridge Contours are far apart.

2 Examine I and complete the following.

(a) What type of landform is represented in AR8740 and AR8741?

(i) Spur (ii) Cliff (iii) Saddle (iv) Ridge

(b) A similar landform is located in which of these places?

(i) AR7941 and AR7942 (iii) AR9037 and AR9136

(ii) AR8335 and AR8236 (iv) AR9636 and AR9637

(c) What type of landform is represented by the contour pattern at

AR8634 and AR8535?

(i) Spur (ii) Cliff (iii) Saddle (iv) Ridge

(d) What type of landform is represented by the contour pattern at

AR9736?

(i) Spur (ii) Round hill (iii) Valley (iv) Cliff

(e) Find another similar pattern on the map and give its area

reference.

(f) What type of landform is represented by the contour pattern at

AR8133?

(i) Valley (ii) Ridge (iii) Hill (iv) Saddle

(g) Give area references for (i) a location on the map that is gently

sloping and (ii) a location that is very steep.

ACTIVITIES

TAMAR VALLEY, TASMANIAIIIIIIIIIIIIIIIIII

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