Owen's Valley, CA - gravel routes?

[dem]

Tentatively planning a ~5 day trip in the fall when the temperatures cool off and before the snow.

I'll hit the top road climbs:
https://pjammcycling.com/zone/53.Owen's%20Valley

But since I'll take my gravel/adventure bike, I'm wondering if there are any other must-do gravel road routes that are epic. The Cerro Gordo ghost town seems like a solid one: https://ridewithgps.com/routes/28190890 - FIETs of 17 puts it up in the top 5 road climbs in the country.

Anybody have any must-do routes?