At the southeast tower, the Cigarette Card for San Francisco can be found on the windowsill. In the corner nearby is a lockbox containing a Health Cure, money, regular Repeater Cartridges, and the Special Horse Medicine Pamphlet.
Southwest of the fort a big log can be found by the river. By this is a lockbox containing Bitters, a large jewelry bag, and a Silver Pocket Watch.
Gator Eggs can be found northwest of the fort and across the river.
Moccasin Flower Orchid can be found north and slightly east along the riverbank.
The player can interact with a man searching for gold on the west part of Mossy Flats.