Trying to identify this lake

We hiked in San Gorgonio Wilderness back in the 1980s… I recently found a photo and would like to geo-locate it. I wonder if you or someone you know might recognize it.

I think we went up the Fish Creek Trail, at least that sounds familiar. Or maybe it was Falls Creek. We camped near the top (after visiting the peak) at Red Rock Flats or something like that–I think? Do you recognize this lake? Let me know. Thanks.

Unknown lake in the San Gorgonio Wilderness

UPDATE:

On June 10, 2022, I heard back from someone at the San Gorgonio Wilderness Area. They wrote, “That is dry lake – along the south fork trail – nice picture”

So, now I know. That puts the photo around here (34.121602713030775, -116.82910743966272).