Marking

When digging a hole in your yard, you really should call 1-800-Dig-Tess (aka 811 or via their online form) in order to find out where the buried lines are on your property.  If you'll be digging deeper than 12", you are required, by law, to call before you dig. I'm always super anal and put in a request whenever I'm digging deeper than a 4" (especially in areas where I know the lines should be located).

Within a few days, the markers will come out to your property and mark gas, cable/phone lines and electric.  ('Red and Yellow, kill a fellow!' also works here)

Anyway, since I had the yard marked when I planted the tree last year, and I decided to have the yard marked for my knowledge when planting some possumhaw this year, I now have pictures showing the markings in the backyard.  The thing that concerns me, however, is the difference in the markings -

Marking from my request this year

Marking from my request last year

Does anyone else see my reason for concern?  Somehow the orange line (cable) has moved by about 3.5 feet over the year.  Yep.  And this is the reason why, even when things are marked, you should still dig carefully.