The PDF order above references a map. I have requested that map attachment. Codes referenced in the order:
16 U.S. Code § 551
The Secretary of Agriculture shall make provisions for the protection against destruction by fire and depredations upon the public forests and national forests which may have been set aside or which may be hereafter set aside under the provisions of section 471  of this title, and which may be continued; and he may make such rules and regulations and establish such service as will insure the objects of such reservations, namely, to regulate their occupancy and use and to preserve the forests thereon from destruction;
36 CFR § 261.50
(b) The Chief, each Regional Forester, each Experiment Station Director, the Administrator of the Lake Tahoe Basin Management Unit and each Forest Supervisor may issue orders which close or restrict the use of any National Forest System road or trail within the area over which he has jurisdiction.
36 CFR § 261.54
When provided by an order, the following are prohibited: (a) Using any type of vehicle prohibited by the order.