Echolocations: River is the second installment of a series of recordings by Andrew Bird that were recorded at a specific location. This time, under the Hyperion Bridge in Atwater Village, Los Angeles was the chosen site, which was though to have interesting acoustic properties. The album contains eight instrumental pieces inspired by the recording location. As with its predecessor, Echolocations: Canyon, Echolocations: River has a companion film made by Tyler Manson. LP and CD on Wegawam.