I heard from Rich Jenkins, CDF archeologist at Redding, today. He wrote: "... Visited the THP area two weeks ago. Plan still under review. Thanks for all of the provided information..... ."
Since the plan is still under review, I believe the public comment period is technically still open.
It is quite doubtful that any comments would substantially change things at this point, unless we found some weird hybrid of a Spotted Owl and some rare, endangered trout, and then, and only then, the OwlTrout would save the day.
590 acres of Placer County history is about to get hammered.