This cat is currently up for review
Does anyone agree with me that this is a case of unnecessary geographic restriction on a category. If it were made global it would still not fall foul of prevalence criteria, and national, state even county intersections would be possible. As it is there can only be maybe a couple of hundred of such points in the continental US itself, max. I think it's a nice idea but too constrained.
I know the global criterion can be argued til the cows come home. Sometimes it's a good idea for organisational reasons - eg historical markers. But I can't see how there are enough of these in the world to have a category restricted to just US states.
It's a nice idea though, but IMHO "three border points" would be nicer. It would need some kind of rule to avoid trivial organisational units.