Silver Dollar City has an online version of their guide for visitors with disabilities.
http://hfeimages.aristotle.net/General/CC/RidesGuideGeneralInfo&Symbols....
SERVICE ANIMALS
Only certified service animals may be admitted on park. Animals
must be under the owner’s control at all times and on a harness or
leash. Owners are responsible for cleaning and disposing of animal
waste. Service animals are not permitted on and must remain
outside the perimeter of all rides, except the following attractions at
Silver Dollar City: Frisco Silver Dollar Line, Geyser Gulch and the
Swinging Bridge. Park staff may not take responsibility for or provide
care to any service animal. Documentation may be requested for
service animals.