Put together another throwback road blog regarding Signed County Route E15. This one has some cool stuff on with the O'Bryne's Ferry location and what's left of downtown Copperopolis.
https://surewhynotnow.blogspot.com/2018/11/signed-county-route-e15-to-copperopolis.html
Put something together for O'Byrne's Ferry Covered Bridge which was part of the older alignment which became County Route E15.
https://www.gribblenation.org/2023/07/obrynes-ferry-covered-bridge.html?m=1