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I'm not familiar with this effect. It seems to be getting worse by the day. Is there a common cause for something like this?

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hack3rfx
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  • I'm finding it difficult to work out what's going on from the photos you've posted - can you post a couple more taken from further away, showing more of the area please? Are there any large trees, a river, a well, a spring or body of water nearby, or a water supply pipe? Is the soil that's rising very wet? How widespread is this effect in terms of size of area? – Bamboo Sep 26 '17 at 10:04

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This phenomenon may be explained by the presence of moles in your garden. I am no expert on the lives of moles, but I have a similar situation around my house. They seem to prefer to dig soil up around fixed structures, such as walls, for some reason. When I first moved here, I would dig the soil back with a shovel or water the raised sections every time I see new activity, and eventually they appear to have given up and diverted their tunnels elsewhere.

user8615908
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    Why in the world would they try an entire strip of my patio? Haha but really, its been 3 days and its worse everytime i look. Are they just repeatedly trying to get up? – hack3rfx Sep 26 '17 at 00:42
  • so there should be vole holes somewhere? – Graham Chiu Sep 26 '17 at 02:26
  • Possibly some kind of rodent is digging just beneath the patio. Holes sometimes difficult to spot. Or the effect of water. Difficult to say. – J. Chomel Sep 26 '17 at 05:47
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    I don't know why someone felt the need to down vote but you were correct. I found lines of mounds next to the patio today. He's been a busy mole. I'll make him my pet. – hack3rfx Sep 26 '17 at 23:26