Joel’s Rockspring Cave
Two bedrock mortars in a rock shelter overlooking a seasonal creek.
Elevation 467 ft.
Joel discovered this very cool rock shelter not far from the Rockspring Place trail head in Walnut Creek’s Shell Ridge Open Space. The cave can be reached by an easy hike and would be a great place to hang out with a cooler full of refreshments on a hot day.
Bob enjoys the view from the cave’s mouth.
A closeup of a mortar that may have begun life as a geoconcretion.