Lost and found
Property may not be left unattended longer than 24 hours. Found property must be turned in to the Visitor Center or nearest park ranger.
Pets
Pets are allowed in the park, but must be physically restrained at all times. Leashes may not exceed six feet in length. Pets, except service dogs (such as seeing-eye dogs), are prohibited in buildings and may not be tied to objects and left unattended.
Pet excrement must be immediately collected by the pet handler and disposed of in the nearest trash receptacle. If there is not a trash receptacle in the area, the excrement shall be removed from the park.
Trash and littering
Littering or other dumping of refuse is prohibited. Use of park dumpsters for discarding household trash is prohibited.
Recreational activities
The park is open during daylight hours. Daylight hours is defined as one half hour before sunrise to one half-hour after sunset. The superintendent makes exceptions to these limits for evening programs, approved special use permits or approval on an individual basis. The superintendent reserves the right to close the park or portions thereof, for resource management purposes, public holidays, national security or emergency situations.
Any public activity, such as standing, sitting or walking on the mounds is prohibited.
All mound groups, rock shelters and historical sites, located in the North, South and Heritage Addition units that are not on established public trails, are closed to public access unless permitted in writing by the superintendent or their designee.
Picnicking
Picnicking is permitted only in designated picnic areas. These areas are: the lawns surrounding the Visitor Center and the boat dock / parking area of the Sny Magill Unit public access area.
Fires
The use of stoves, charcoal or gas grills or other cooking devices is prohibited within the park, unless permitted in accordance with the terms of a special use permit.
Skating, skateboards, and similar devices
Use of these devices is prohibited. Bicycles of all types are not permitted in the park beyond the visitor center parking area, or the Sny Magill Public access corridor. Segway® Personal Transporters (or similar such device) are not permitted in the park beyond the visitor center parking area, or the Sny Magill Public access corridor, unless the Segway® Personal Transporter is being used by persons with disabilities in designated handicapped accessible locations where persons with disabilities currently use personal mechanized modes of conveyance.
Smoking
Smoking is prohibited in all public buildings. Smoking on trails and other outside areas of the park may be prohibited during periods of high fire danger.
Horses and pack animals
Horses and pack animals are permitted in the visitor center parking lot and the Sny Magill Unit public access corridor. Unless being used for resource management purposes, horses and pack animals are prohibited from all other park areas.