Oh right! Forgot I started this. Thanks @mrice1225 for digging this up and posting the good news. However, Kiewit still retains ownership so I wouldn't be surprised to see it rear its head again when there is another opportunity to supply rock.
Looks like they withdrew the applications for the mine and it's been called off for now!
https://www.goskagit.com/news/local_news/marblemount-mine-project-called-off/article_dc799823-4fb3-5ce3-86c7-37578bdf278b.html