After many decades of abuse the Los Angeles River running through (surprise) Los Angeles is being restored to something resembling its natural condition along parts of its course. There has been enough restoration that they held the first annual fly fishing derby.
For fly fishermen at inaugural L.A. River derby, it's <i>carpe diem</i> - LA Times
For fly fishermen at inaugural L.A. River derby, it's <i>carpe diem</i> - LA Times