To serve the irrigation needs of the orchards, Littlerock Dam was built in 1924. The dam is an Eastwood cement multiple arch buttress dam and is one of several built in the Western U.S. It is considered a historical architectural monument. It is located in the
Angeles National Forest
adjacent to Littlerock and serves as a recreational facility for off-road vehicles, fishing, boating, equestrian trails and camping. This is a popular retreat and can be enjoyed year-round.
Source - Littlerock Chamber of Commerce