Guadalupe Oak Grove Park
4 bedrock mortars
Elevation 296 ft.
A funnel-shaped mortar or a small cone with a broad flaring mouth? You make the call.
Skeptical Bob runs his hand over the inner surface of this shallow concavity to determine whether if feels “worked.” It does.
A shallow mortar.
Photograph by Bob Bardell.
The mortar on this rock may have started life as a natural feature..
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