Keep - I fail to see how such a category will reinforce the notion that most or all rivers flow south — by adding counterexamples, i.e. rivers that flow north! As for being "poorly defined", that can be separately addressed, but not by deletion!Please note that I populated the category by listing articles that said that a particular river "flows north". Should those sentences be elided? This, by the way, suggests a method of defining/maintaining the category, does it not?
(-dav4is (talk) 15:48, 8 December 2016 (UTC))[reply]