I was speaking to a neighbor the other day about old landmarks when out of the blue he was telling me how he had a capped well on his property and then how, when he was digging a fence post hole, he struck an underground stream. "It was just flowing - zip!" he said, and made a cutting motion south to north.
It was one of those moments of synchronicity, because I'd recently workshopped a short urban fantasy story set loosely in the local neighborhood which featured an underground stream flowing in a northerly direction.
[Insert spooky music here.]