The J-Mack is one of two remaining car ferries operating in the Sacramento River delta. It crosses Steamboat Slough, connecting Ryer Island with Grand Island. It is part of California State Highway 220.
The J-Mack is one of two remaining car ferries operating in the Sacramento River delta. It crosses Steamboat Slough, connecting Ryer Island with Grand Island. It is part of California State Highway 220.
Transportation - Misc, Sea - Ferries 
