Here's a couple boulders that are homes for critters for this #bouldersunday by 
This first boulder has a little tiger beetle on it. I suspect he hangs around here to catch flies that land here for sunrays.
Here's the farther out view. I was able to sneak up for a closer shot fortunately.
This next boulder has a chipmunk hole in it.
Here's the entrance to Alvin's hideout.
On the surface there are quite a few shelled walnuts and acorns. I suspect thus is a popular boulder for sunning, eating and living for the chipmunks.
Meanwhile squirrely is wondering why the human is taking pictures of the boulders... happy #bouldersunday
From @sketch.and.jam