43 CFR 3832.32 - How much land may I include in my mill site?
The maximum size of an individual mill site is 5 acres. You may locate more than one mill site per mining claim if you use each site for at least one of the purposes described in § 3832.34 of this part. You may locate only that amount of mill site acreage that is reasonably necessary to be used or occupied for efficient and reasonably compact mining or milling operations.
Title 43 published on 2014-10-01
no entries appear in the Federal Register after this date.