Long Term Near Florence Alabama

Hello,
I am looking for a campground that might offer long-term storage and a nice campground in or around Florence, Alabama. We live in Nashville, TN and would like to find a place to store our travel trailer and then possibly be able to have it set to camp on the occasional weekends when we can get away.

Any Ideas? Guntersville or Huntsville might be an option as well.

Thanks

Travis