Along the Los Angeles River are invisible cities whose population centers do not figure on official maps. The river's littered banks have become a no-man's land for the homeless--the hard-core junkies, the mentally ill and those just trying to disappear. A dozen or so people live in tents and lean-tos under the 7th Street bridge in Long Beach, just one of the many invisible villages along the river.
Francine Orr | Los Angles Times
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Warning: Contains stark images of drug use.