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Topographical Maps: Settlements, Land Use, Transport and Drainage: Notes

6 sections 5 min readBeta

1. Settlements: site and services

  • The site of a settlement is the exact spot where it stands. Good sites have water (stream, tank, well), gentle fertile land, a road or track, and safety from floods.
  • Services are shown by letters beside a small black square: PO (post office), PS (police station), Dis (dispensary).
  • On the imagined practice sheet (not a real place, not a Survey of India sheet) Nandiwadi has a PO and a PS, Sonakhedi a dispensary and Pathrali none. All three villages stand on gentle ground near water and a track.
Imagined practice sheet
VillageServices
NandiwadiPO, PS
SonakhediDispensary
PathraliNone shown

Key terms

Site

The exact location of a settlement and its local advantages.

Service centre

A settlement whose facilities (post office, police station, dispensary) serve nearby villages.

2. Land use and land cover

  • Yellow: cultivated land. Green: forest. White (with small green ticks): open scrub, uncultivated land. Blue: water.
  • Fallow land is cultivated land left unsown for a season; the imagined sheet does not mark it separately.
  • On the imagined sheet about 45% is cultivated, 33% open scrub and 22% forest.
  • Inferring occupations: yellow land with a tank or canal suggests agriculture; green steep land with no huts suggests forestry; white scrub with scattered huts suggests grazing or dry farming.
Imagined practice sheet
EvidenceOccupation
Yellow, tank, canalAgriculture
Green, steep, no hutsForestry
White, scattered hutsGrazing, dry farming

Key terms

Land use

The way an area of land is used, such as farming or forest.

Open scrub

Uncultivated land with scattered bushes and grass, shown white with small ticks.

3. Transport and communication

  • Metalled road: thick red line (about 10.9 km on the sheet). Unmetalled road: thick black broken line. Cart track: thin black line. Pack track: thin broken line. Footpath: dotted line.
  • A bridge carries a road across a river. A canal is a blue line that follows a contour.
  • Communication also includes the post office. The metalled road links Sonakhedi and Nandiwadi; the unmetalled road links Sonakhedi, Pathrali and Nandiwadi.
Imagined practice sheet
TypeSymbol
Metalled roadThick red line
Unmetalled roadThick black broken line
Cart trackThin black line
FootpathDotted line

Key terms

Metalled road

A road with a hard surface, shown in red.

Pack track

A track for pack animals, shown by a thin broken line.

4. Drainage: direction of flow

  • Rivers flow from higher to lower ground: heights along the river decrease downstream.
  • Where a river crosses contours, the V-shaped bends point upstream (towards higher ground).
  • Tributaries join at acute angles pointing downstream.
  • On the imagined sheet the main river flows south-east, falling from about 274 m to about 41 m; a tributary at A (217 m) flows east to B (149 m).
Imagined practice sheet
ClueMeaning
Heights fall along the riverDirection of flow
V-bends of contoursPoint upstream
Acute junctionsPoint downstream

Key terms

Tributary

A stream that flows into a larger river.

Upstream

Towards the source of a river, where the ground is higher.

5. Drainage patterns

  • Dendritic: tree-like; tributaries join at acute angles; the pattern on the imagined sheet.
  • Trellis: long parallel streams with short tributaries at right angles (shown here only as a separate schematic).
  • Radial: streams flow outwards from a central high point, like the spokes of a wheel (schematic only).
Imagined practice sheet
PatternLooks likeForms on
DendriticTree branchesUniform ground
TrellisGarden fenceFolded or banded rock
RadialWheel spokesDome or cone

Key terms

Dendritic pattern

A tree-like drainage pattern on fairly uniform ground.

Trellis pattern

A fence-like pattern of parallel streams joined at right angles.

Radial pattern

Streams flowing outwards from a dome or conical hill.

6. Settlement patterns and natural or man-made features

  • Clustered: huts close together (about 0.1 km apart in each village on the sheet); reasons: water, road, safety, shared fields.
  • Dispersed: huts far apart (over 1 km in the north-west); reasons: thin land, grazing, dry farming, no single water source.
  • Natural: river, streams, hill, ridge, escarpment, forest, scrub. Man-made: canal, embankment, bridge, roads, tracks, huts, wells, tank (dug and banked), temple, post office.
Imagined practice sheet
NaturalMan-made
River, hill, ridge, forestCanal, bridge, road, hut, well, tank

Key terms

Clustered settlement

A settlement in which the huts stand close together.

Dispersed settlement

A settlement in which the huts are scattered far apart.

Exam tips

Common mistakes

  • Giving a one-word reason such as "water" instead of naming the source on the map.
  • Naming an occupation without citing the tint, water or facilities.
  • Saying a river flows uphill, or placing the V-bends the wrong way.
  • Naming a pattern without describing its shape.
  • Calling the tank or canal natural.

How marks are usually awarded

  • Site (2 to 3 marks): each reason tied to map evidence.
  • Land use and occupation (2 marks): the tint and the inference.
  • Drainage (2 marks): direction with evidence; pattern with its shape.
  • Settlement pattern (2 marks): the pattern and a reason.