The camp ground is probably open to whatever wants to use it, but there won't be anyone around to collect trash, or clean the rest rooms. Don't bother looking on the NFS web site for info. It is not being updated during the government shut down. You could try calling the Homochitto Ranger District office but I don't think there will be anyone there to take your call as they have all been furloughed.
Have you tried calling or emailing? They do have a website, and usually respond to emails quickly.
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