Assuming you are in a state owned campground, the last item would apply:
Michigan Department of Natural Resources - Parks and Recreation
PARKS AND RECREATION AREAS - STATE LAND RULES
REGULATIONS OF LANDS ADMINISTERED BY THE MICHIGAN DEPARTMENT OF NATURAL RESOURCES
www.michigan.gov/dnr
(This excerpt contains rules relevant to State Parks and Recreation Areas, Effective Jan. 29, 2014)
Issued by authority conferred on the Michigan Department of Natural Resources (DNR) by Section 504 of 1994 PA 451 MCL 324.504.
NOTE: It is your responsibility as a user of public lands, to ensure you are informed of all current rules and regulations relevant to your activities. The information
presented here represents some details relevant to land use, but is not a complete list of all rules and regulations, and may not be as immediately updated as current
legislation and rules. This product is not a legal notice, nor a complete collection of hunting regulations and laws. It is a condensed tool issued for convenience on
this specific subject. Contact your local DNR office if you have questions, or to verify regulations relating to possible activities before engaging in those activities.
GENERAL RULES (History: 2001 AACS; 2014 MR2, Eff. Jan. 29, 2014)
R 299.922 - Unlawful acts generally. Rule 22 - On land owned or under the
control of the department, it is unlawful to do any of the following:
(a) Enter, use, or occupy state-owned land for any purpose where posted
against entry, use, or occupancy, as ordered by the department.
(b) Dispose of refuse, rubbish, trash, or garbage not resulting from the use of
state-owned land in a receptacle provided on state-owned land.
(c) Set a fire to the contents of a trash container.
(d) Bury or burn refuse, rubbish, trash, or garbage.