Just downloaded the Land Conservation (Vehicle Control) Regulations 2013
12 Display of signs and notices
(1) A person having management or control of public land must as soon as practicable after making a declaration under these Regulations ensure that signs or notices informing the public of a declaration are displayed at the areas affected by a declaration.
(2) A sign or notice required under subregulation (1) must—
(a) be displayed in a place and manner that is likely to be seen by any person affected by the declaration; and
(b) state any conditions included in the declaration.
Note
The Road Safety (Traffic Management) Regulations 2009 apply if a sign or notice is also a traffic control device within the meaning of those Regulations.
Guess I need to determine when it was declared…