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I was going through an old Indian survey map, when I saw this unfamiliar relief feature. It looked like a cross between a hachure and saddle. Could someone help identify it?

  • 3
    $\begingroup$ the location and scale of the map might be helpful when identifying this.can this be farming related? $\endgroup$ Commented Feb 20, 2023 at 20:32
  • $\begingroup$ It is likely a surface mine. $\endgroup$
    – Spencer
    Commented Feb 21, 2023 at 0:46
  • 3
    $\begingroup$ Are you asking about the relief itself or about the symbol? Is the symbol absent from the map legend? $\endgroup$ Commented Feb 21, 2023 at 6:25
  • 5
    $\begingroup$ The map appears to be a Survey of India map, sheet G43S10. This appears to be near Abu, Rajasthan, India at about 24.56°N, 72.72°E. For orientation, I found it useful to locate St. Mary's High School at the top edge of the image from the question. Using Google Maps, I cannot discern anything interesting in the area circled green: it appears to be just a rock outcropping. According to the Survey of India map legend this seems to be the signature for "rocky slope", but I could be wrong (I am not at all familiar with these maps). $\endgroup$
    – njuffa
    Commented Feb 21, 2023 at 7:28


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