Oso Reservoir is one of the Southland’s premier bass fishing lakes.

Oso rests in the foothills of the Santa Ana Mountains approximately 30 miles southeast of Santa Ana.

This 175-acre lake is managed as a catch and release fishery operated by Oso Sportsman’s Organization, and managed by Bob Heerdt.

Oso consistently produces largemouth bass in the 10 plus range.

Boats with electric motors and float-tubes are permitted and rental boats are available at the marina.

For more informatio...