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coal rising up in my yard

susanmtafoya4VV1hbbQsusanmtafoya4VV1hbbQ Posts: 1
in Problem solving
We built our house in 2013 and the area under two old trees (a maple and an oak) always has coal coming up from underground.  Some are small pieces (1-inch square) while others are a few pounds each.  And there are very small pieces.  I rake them up and a few months later, there's more coal.  They are not coal cinders but unburned lumps of coal.  I've checked coal mine maps but no mines in my area.   Any idea why this is happening?  Also, I planted day lilies around the perimeter and all are doing OK except near the oak.  I don't know if it's the coal or the oak that is causing them to die.

Posts

  • Jenny_AsterJenny_Aster Posts: 945
    King Alfred's Cakes?



    https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/fungi-and-lichens/king-alfreds-cakes/
    Trying to be the person my dog thinks I am! 

    Cambridgeshire/Norfolk border.
  • bédébédé Posts: 3,095
    edited April 2023
    The original owners of my property must have lived a funny lifestyle. Mixed rubbish and woody garden waste in several heaps. No coal bunker but several heaps. I can get pieces of coal, no bigger than a walnut, just about anywhere. Hard, mined coal, any Surrey pre-industrial coal would have been charcoal. I also get flints, although metres down from their original pre-erosion chalk source. Some with stone-age worked edges.
     location: Surrey Hills, England, ex-woodland acidic sand.
    "Have nothing in your garden that you don't know to be useful, or believe to be beautiful."
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