Combine oats, chia seeds, and salt in a small resealable plastic bag.
The night before, pour oat mixture into a 2-qt. saucepan. Stir in 4 cups water. Bring to a boil and cook 1 minute, then remove from heat. Cover with a lid and place in a critter-free spot overnight, such as a bear box, if available. Or let mixture cool, transfer to a plastic bag, and seal in a bear canister.
In the morning, heat oatmeal until simmering, stirring often and adding more water if you'd like it thinner. Spoon into bowls and top with almond butter, brown sugar if you like, and blueberries.
*Chia seeds, when mixed with liquid, make no-cook pudding (find at natural-foods stores). Find almond butter packets at natural-foods stores.