Question

Study the extract of the Survey of India Map Sheet No. G43S7 and answer the following questions:

1. 1. What is the social significance of the temple that is found at the six-figure grid reference 362001?
   2. What is the reason for very few settlements in the southeastern quarter of the map extract?
2. 1. What is .3r in grid square 3501?
   2. Identify one relief feature found in the grid square 3796.
3. 1. The area shown on the map extract has seasonal streams, but in 3903, a large perennial water source can be seen. What may be the reason for the presence of this large perennial source of water?
   2. Which other source of water seen on the map extract is perennial?
4. 1. While travelling for work from Dhaneri (3100) to Marwada (3197) along the metalled road, Sahil crossed over a number of ‘causeways’. Why are causeways present in the area shown on the map extract?
   2. Identify the drainage pattern seen in the grid square 3697.
5. 1. What is the difference in altitude between the highest point on the map extract and the contour height in grid square 3203?
   2. What is the black horizontal line made between 98 and 99 northings called?

Answer 1

1. 1. It serves as a place of worship for the local community and is frequently used as a location for social meetings, festivals, or fairs, encouraging communal harmony.
   2. The southeastern section is characterised by high relief, steep slopes, and extensive vegetation (as represented by green wash), rendering the terrain unsuited for agriculture and construction.
2. 1. It represents a relative height of 3 meters for a sand dune or a dry tank embankment.
   2. A ridge or a steep slope is indicated by closely packed contours.
3. 1. The presence of a perennial lined well or a perennial tank fed by underground water sources or springs, as opposed to seasonal streams that depend on rainfall.
   2. Perennial-lined wells (blue circles) or a perennial river (blue water tint).
4. 1. Causeways are constructed over seasonal streams (dry nullahs) that overflow during the monsoon. They let cars cross the stream bed when the water level is low.
   2. Dendritic drainage pattern
5. 1. Difference in altitude:
      Highest point on map = 542 m
      Contour height in 3203: 280 m
      Difference: 542 − 280
      = 262 m
   2. It is the Latitude line (specifically the 24° 30' N line if it is the central dividing line of the sheet).