ACTIVITY 2.6 Summative Assessment Mapwork skills using a topographic map Refer to the topographic map extract 2528 CA Pretoria on pages 4 and 5 . 1. Locate the hill with trig beacon 108 in block B2. a. Give the height of this hill. b. i. Are the slopes on this hill gentle or steep? ii Give a reason for your answer. 2. Locate the Apiesrivier (Apies River) from the Bon Accord Dam in block C3 to the Wonderboom Bridge in block F3. Prove that: a. the river is flowing in a northerly direction b. the river's flood plain is flat c. the river's flood plain is fertile*. 3. Locate the hill feature that cuts through the Magaliesberg in block F3. a. Name this hill feature. b. With reference to the map, give an accurate description of this landform. c. How has this hill feature been used to link Pretoria and Pretoria North?

Below is an example of a well‐structured answer that demonstrates how you can “read” the map and justify your responses. (Note: The exact numerical values and place names used below are those that you should derive from the 2528 CA Pretoria map extract on pages 4 and 5. If your map gives slightly different figures or labels, adjust your answers accordingly.) ───────────────────────────── 1. Hill with trig beacon 108 in block B2   a. The topographic map shows that the summit (as indicated by the closed “spot‐elevation” circle) marked with trig beacon 108 is at – for example – 1612 m above sea level.     • (Your map reading may show a different value; use the number given on the map.)   b.     i. The slopes on this hill are steep.     ii. This is because the contour lines on the hill are very close together. (When contour intervals are small—that is, when the lines are tightly spaced—it indicates that the land is changing elevation rapidly, which is characteristic of steep slopes.) ───────────────────────────── 2. The Apiesrivier (Apies River) from the Bon Accord Dam (block C3) to the Wonderboom Bridge (block F3)   a. Proving the river flows in a northerly direction:     • On the map the river’s source (at the Bon Accord Dam in block C3) is at higher elevation, and the river flows so that the elevation decreases as it proceeds to block F3.     • Also, the arrow on the river course (or simply following the drawn meander) shows that its overall orientation is towards the north.   b. Proving the flood plain is flat:     • The flood plain is represented by a large area with very little or no contouring detail (i.e. the contour lines are few and far between or nearly parallel), indicating little change in elevation across the area.   c. Proving the flood plain is fertile:     • Flood plains are generally fertile because periodic river flooding deposits nutrient‐rich sediments, and the map (for example through additional symbolic notations or labels) may indicate that the area is used for agriculture.     • You might also mention that the flat nature of the flood plain makes it ideal for cultivation and settlement. ───────────────────────────── 3. The hill feature that cuts through the Magaliesberg in block F3   a. Name of the hill feature:     • On the map this hill is labelled – for example – “Elandspoort.” (If your map provides a different name, use that.)   b. Accurate description:     • The hill appears as an isolated rise that “cuts” through the otherwise continuous ridge of the Magaliesberg. Its summit is shown by a distinct, closed contour that is lower than the main body of the Magaliesberg.     • Its sides show a less dramatic change in elevation compared to the adjacent steeper sections of the range. (Be specific: mention cardinal directions if the map allows, for example “its eastern flank declines gradually into a saddle‐shaped depression.”)   c. How the hill feature has been used to link Pretoria and Pretoria North:     • The natural pass (or saddle) provided by this hill feature has been exploited as a route for a major transport corridor (road, railway or both) that connects Pretoria in the south with Pretoria North.     • In other words, rather than having to bypass the steep slopes of the Magaliesberg, the alignment of the highway/railway follows the gentle grade of this feature, making travel and transport between the two parts of the city easier and shorter. ───────────────────────────── Remember that your answers should refer specifically to what you observe (contour intervals, labels, symbols) on the provided map extract. Always justify your interpretations by linking map symbols (such as the spacing of contour lines or the direction indicated by the river’s course) to the physical characteristics (steepness, flatness, orientation) you are describing.