As far as I know, the Idaho Maryland is closed but being “looked at” by a small Canadian company. Any reopening seems very doubtful.
They drilled the hell out of it, last time I talked to one of the companies principles they were held up by NEPA/CEQA crap. The “review” time was going to be 4 years plus (which is total bull****).
The water in that particular mine is clean enough for direct discharge to Wolf Creek under NPDES permit with little to no treatment.
There’s still a lot of gold in there (as is the case with most of the old CA mines. Companies plan was to put a 5000 foot deep spiral decline in and expand the resource via drilling during operations.