On the map I am looking at right now, black dot represent cities. I don't know specifically what kind of map your looking at but I assuming from what I see it represents. If I'm incorrect feel free to notify me and I'll be happy to look deeper into the question :)
--BrainE
Black dots on a map typically represent cities or towns, but their meaning can vary depending on the type of map. They may also indicate landmarks or geological features. Always check the map's legend for specific meanings.
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