I found a hole in my yard. This area has three common features that could cause that, a sink hole from an underground stream, prairie dogs, which are everywhere in the neighborhood, or an abandoned mine shaft. For safety reasons, I need to determine how large the hole is. It is 4 ft from the property line, so I also want to know how much of my property is endangered, but want to be careful examining the hole, as it could be more on the neighbors side (it does point that direction), and so disturbing it could undermine their property.

What can I do to determine the size of the hole?

  • 1
    Is this a new hole? Call your city/county inspector and have them examine it.
    – JACK
    Aug 26 '20 at 2:10
  • I'm not sure if it is new. I moved in recently, and noticed it after.
    – Village
    Aug 26 '20 at 2:11
  • Any portion of the hole that is under your neighbours property is not your problem, it's theirs. as an interested party they may be willing to offer advice as to what type of hole this appears to be.
    – Jasen
    Aug 26 '20 at 3:03
  • 1
    Measure the perimeter and divide by 3.14 to get the diameter.
    – Solar Mike
    Aug 26 '20 at 4:17
  • use the same technique that you used to determine the distance from the property line .... use a tape measure to get exact dimensions if you so desire
    – jsotola
    Aug 26 '20 at 6:56

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