Rock Island provides cut fire wood at the woodlot concession near the Boathouse. You can purchase wood by the rick. Bring cash with you if you want to have wood fires.
Firewood may not be brought onto Rock Island, so plan ahead to purchase what you will need when the wood concession is open.
Wood is sold from 4:30-5:30pm daily. Some conveyances may be available to haul firewood, but plan to bring your own cart/carrier if you have one.