Apologies if someone already pointed this out, quite a few comments on this thread so there's some I didn't get to.
The aircraft carrier and battleship in the modern age stream had a navagable river tile highlighted as a tile it could move to.
Thought it might be worth mentioning since some people mentioned battleships travelling up rivers as silly (it kinda is). Nevertheless, having a battleship arrive to turn the tide of a battle in the center of a continent will be something I try the first chance I get.
The aircraft carrier and battleship in the modern age stream had a navagable river tile highlighted as a tile it could move to.
Thought it might be worth mentioning since some people mentioned battleships travelling up rivers as silly (it kinda is). Nevertheless, having a battleship arrive to turn the tide of a battle in the center of a continent will be something I try the first chance I get.