Someday I'll know what all the different National "blah" designations mean.
They take a while to grow so they mark off areas where people can dig and move it around periodically.
I am certain this is not good for the car. But seeing as how we are from Boston where they use tons of road salt it can't be any worse than winter.
You then use the water to wash down the sides of the hole feeling for the crystals.
We didn't really have a shovel but we found some abandoned equipment.
Not one is sure why they form this way but it only happens here.
I also found a scorpion under the trailer. The pictures didn't come out sadly.
It was a little unnerving because we both left our shoes outside to let the crystal digging dirt dry off.