Glenmore Reservoir is a major drinking water source for Calgary, located in the southwest part of the city on the Elbow River. Created by the Glenmore Dam (built in 1932), the reservoir supplies the Glenmore Water Treatment Plant, which along with Bearspaw serves Calgary's drinking water needs. The reservoir area includes Glenmore Park and the Heritage Park Historical Village. As a protected watershed, the reservoir has restrictions on activities to maintain water quality. Water supply security from Glenmore and other sources is a significant planning consideration as Calgary grows and climate variability affects river flows.