Calafia's Daughters is post-apocalyptic SF set along the West Coast of North America (formerly California and Oregon). It has fairly standard premises: a virus makes men scarce and women warriors, terrorism and war cut this region off from the rest of the world leaving pockets of radiation and people descended halfway to barbarism, the elders tell tales of Before, the peaceful are threatened by rising militant barons while certain enclaves preserve civilization in different ways, and a bisexual dog-trainer/hunter with a slight sixth sense deals with an unexpected pregnancy while pursuing a dangerous trip to investigate a possible threat to her people that turns into a quest to save a man from slavery to whom she owes her life (no, they are not romantically involved).
What's that you say? Oh, right, that last part isn't standard at all. It's a refreshing change, and a powerfully humanist book. And you should see the number of breasts that are bared in order to feed hungry babies. :)
I really enjoyed it, in that not-quite-guilty-pleasure sort of way. It's on my list of possibles for Hugo Nomination.