Photo: Diane Edwardson, April 23, 2011. Cat faces used to adorn storm drain covers throughout the LA River, like this one, just north of the Fletcher Bridge. (Click on photo to enlarge.)
The Great LA River Clean Up is Saturday, April 30, 2011 at various scenic spots on the river, including in our area: Marsh Street Park, Elysian Valley Gateway Park, , Taylor Yard, Steelhead Park, Sunnynook Bridge, Los Feliz and Griffith Park.
For info, maps and more, see Friends of the Los Angeles River (FOLAR).