During my search for Rockridge Rock, I’ve been finding some fine Franciscan knockers doing their understated bit to add character to the neighborhood. Call this part 1, because I’ll surely find more as I pursue my search. These five rocks are shown in descending order of elevation. The first is at Buena Vista Avenue and Hill Road, a red chert.
This gray chert is on
Bowling Westminster Drive, near the purported Rockridge Rock site on Glenbrook.
This greenschist or blueschist is next to Romany Road.
This rugged outcrop is in a private yard.
This greenstone boulder is at Cross Road and Broadway Terrace.