This is a stitch of 4 jpegs, done in PS5, then played with the exposure to try & increase the detail in the shadow at the bottom of the gorge.
The bit that looks like quartz at the middle bottom isn't it is blown out.
The bit bottom left of that is the reflection I want to get to.
This is the best result so far, I couldn't get this good with the RAW files.
Am I trying to do the impossible? TBH I'm surprised I got this far, but it's not quite the picture I want.