The reservoir, dams, and picturesque valve tower have a New Zealand Historic Places Trust Level I classification.
[3][4] The reservoir is located in a heavily wooded valley in the suburb of Glenleith, four kilometres north of the city centre.
The highest point in the reserve, in its northeastern corner close to Tanner Road, is some 190 metres (620 ft) above sea level.
The walks can be entered from various points along Burma and Tanner Roads, but the main entry is from lower down Ross Creek at Glenleith.
Notable features of the reserve — other than the reservoir — include a waterfall which cascades some 20 metres (66 ft) into School Creek.