J. Gregory Keyes, The Waterborn

Interesting and unusual fantasy in a pantheistic world, where every wood and stone has its own god -- except in the areas where people have driven them out. The greatest god of all is the River, but a rash young hero, in love with a tributary stream-goddess, sets out to kill him anyway. ( Read more... )

I enjoyed this a lot, under the impression it was a standalone. It could stand as one, but in fact there's a sequel, The Blackgod, and it's even still in print, so I promptly ordered it.