Los Angeles Has a River?

"I never knew that Los Angeles had a river," jokes Tonight Show host and L.A. newcomer Conan O'Brien in the video above. While the river may seem a bit, well, neglected, we've managed to round up a few groups and events that focus on the 51-mile waterway. Here's how you can appreciate L.A.'s forgotten river:

• Take a virtual tour at Los Angeles River Connection. 
• Ride along the river's various bikeways (start training now for next year's Annual L.A. River Ride). 
• Get involved with clean up and restoration projects by joining or donating to groups like Friends of the Los Angeles River and the River Project. 
• Find out what the city's government has planned at the Los Angeles River Revitalization Web site.     

--Della Watson