Haights and Stanton
Highland Park Zoo
Bears at the Zoo
Highland Park Entrance
Discharging Scraper
Hill Road Surface Drain
Highland Park Zoo
Heberton Wall South
Heberton Street Wall
Highland Park Entrance
Bear Pit
Highland Park
Highland Reservoir No. 2
Boat House on Carnegie Lake
Children's Zoo
Children's Zoo
Drawing Plans of Haights Run Bridge
Cleaning the Bottom
Haights and Avondale
Hill Road
Heberton Street and Wall
Lake Carnegie
Highland Reservoir No. 1
Cleaning Bottom
Cleaning at Highland Reservoir
Cleaning Operations
Highland Park
Concrete Lining