"Free" if you have a recreational passport. $9 a day otherwise.
If you paid for a state recreation fee when you renewed the tags for your license plate it is free to get in. If not, there is a fee between $11-19....depending on if one visit or yearly pass I think.
It is $11 if you buy at Secretary of State, but $16 at the gate for the entire year!
You have to have a state park permit- i think it was $19 for the year at the gate
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