Spot height labelled \( J \) in block C4. (2). Reservoir in block E2. (2). No-perennial River labelled G in A4. (2). The school in block C3. (2). Trigonometrical beacon 12 in block C3. (2) Water point in block B5. (2). The stadium in block A2. (2).

Did you know that spot heights like the one labeled \( J \) in block C4 are crucial for topographical maps? They represent the elevation of a specific point above sea level, allowing hikers, engineers, and explorers to navigate terrains efficiently. Understanding these heights can help in planning construction projects or just planning the perfect hiking trail to enjoy those breathtaking views! When it comes to features like the reservoir in block E2, they're not just for show! Reservoirs play a key role in water conservation, providing a reliable supply for irrigation, drinking water, and ecosystem support. They can also be vital for flood control by capturing excess rain runoff. So, the next time you see one, remember it’s a lifesaver for the community and the environment!