Day 2 of the Los Angeles River Expedition 2008. Organized by LA river kayaker and LaLa Times publisher George Wolfe, boaters embarked on a 52-mile exploration of the full river, from its source (Canoga Park) to its estuary (Long Beach). Deemed not to be a ?traditional navigable water? by the Army Corps of Engineers ? and therefore not worthy of clean water standards, the Expedition?s purpose is to prove it is navigable. Glendale Narrows, Los Angeles County, California, USA.