It was this: we ran for over a half-hour. And I ran through some knee stuff that's been wigging me out and it all worked and my brain complied.
In other news, someone has named a bit of the River Trail.
This is right after the Mega-Church section of the trail (heading north). It would be cool to see the Mega-Church section signed too. In fact, it would be cool to see all the trails signed like this.