Comment by tomrod

Brine is probably very valuable.

If we make it a slurry, perhaps we could use it to pump to unpopulated areas with endorheic lakes like the Salt Lake or Salton Sea, then mine and refine the resulting slurry.[0]

The concern is the brine getting into the atmosphere -- that can likely be mitigated.

[0] https://oceanservice.noaa.gov/facts/gold.html