Dirt mounds in woods

[horsesterry]

Hi. I don't think I'm posting this in the right spot, but I'm not sure where to ask the question. I found multiple dirt mounds around what I think could be a cellar hole. However, I don't know if they are old. Also, in one picture when I was digging, I came up with dirt that looked like it could be part ash. Can someone help me date these pictures and tell me what they are? Thank you for your help?

 

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[DeepseekerADS]

My folks had rock piles around their garden where they prepped the land for plowing.

 

[pa-dirt_nc-sand]

If you go around and in the area you think is a cellar hole you should get loads of iron signals. If no iron signals then maybe piles from mining operations. There are woods near me full of mounds, but I know it was an old coal mine area.