Could you add a feature to unmark land mines for replacement, so whenever a mind explodes without a thrower in range (player placed), it doesn't make a pulsing square on the map forever.
Would love to have this as well. Also true if you accidentally misplace a field, say, a chunk or two too far away and now you have blinking markers FOREVER, unless you build a mine thrower there to place the mine field and then you can deconstruct it.
It would appear that the indicators are time-gated and will disappear on their own after a while. I haven't nailed down the exact time, but all of the misplaced markers disappeared within like...half an hour or so.