Here's one from Oregon:
"Creek" is pronounced "crick," but not all the time. Rock Creek, for instance, can go either way. If you're going to a small, non-specific, moving body of water (to catch crawdads, perhaps), you're going to the crick. It depends on who you're talking to (usually older people), where you are (outside of Multnomah County), and how modern the neighborhood surrounding the creek is (residents of older, more rural places are more likely to say "crick").
Sometimes I say "crick" and I want to punch myself in the throat. ಠ_ಠ