Persistent Dry Circle in Gravel Driveway

Nice to see you back, fm.

I had visions that you were too busy jigging up the rigging, or taking advantage of the February trade winds.

I did enjoy some rzor clams where I was . They have a really nice flavor , sweet and seafoody. Lotta Ohmommy.

Look for the holes in the sand, pour some salt in and up they pop!

This is such a manly thread. I'm so turned on right now.

<positions emergency potato - gets ready to strut>

oooooh it's an FMan and a Lordy

pretty schweeet

Post erased, landed in wrong spot.

No clay or limestone here, mainly igneous. I'm on a rocky slope, with outcrops of rhyolite.
I was interested in what lay beneath the circle. Drove a hollow tube in about 2 &1/2 feet. It came back with the usual sort of mineralized soil and bits of rock that are common here.

No limestone in this area. Mainly igneous. Rhyolite prominent here, basalt to the South.

Ross, listen to Farmerman.. (he's a geologist)

Fm, you're back!

hmm, absent any karst stuff, it could be a bunch of things from, very permeable spots to fairy ring mushrooms. (usually though, fairy rings display some very bright green borders ).

Without seeing some pictures with something for scale, its all guessing.
Post a pic if you can ok?