Code of Federal Regulations Title 43. Public Lands:  Interior § 43.423.14 How will Reclamation post and delineate closed areas at the site of the closure?

(a) Locked doors, fencing, gates, or other barriers;

(b) Posted signs and notices at conspicuous locations, such as at normal points of entry and at reasonable intervals along the boundary of the closed area;  or

(c) Other reasonably obvious means including, but not limited to, onsite personal contact with a uniformed official.