 It is joined by Indian Creek, and then at Upper San Leandro Reservoir it is joined by Moraga Creek, Redwood Creek, Buckhorn Creek and Kaiser Creek, then just below the spillway by Miller Creek.At Lake Chabot in Anthony Chabot Regional Park it is joined by Grass Valley Creek, then descends to San Leandro Bay.The Redwood Creek tributary is protected by Redwood Regional Park, which contains the largest remaining natural stand of coast redwood ("Sequoia sempervirens") found in the East Bay.