The Colquitz River has one of the largest watersheds within the Capital Regional District, draining an area of about 49km2. It extends from Elk/Beaver Lake in the north and eventually drains into Portage Inlet. The topography within the watershed is generally flat, with an average gradient of 0.6%. Several tributaries enter the Colquitz, including Swan, Blenkinsop, Viaduct and Durrell creeks. The watershed lies within the Coastal Douglas fir biogeoclimatic zone and includes a variety of land types from dry rocky outcrops to low-lying marshy lands with underlying clay and/or peat soils.

Did You Know?

  • Elk/Beaver Lake was the main drinking water source for Victoria from 1872 – 1925
  • A dam built in 1860 at the outlet of Beaver Lake was used to store water for a sawmill downstream at West Saanich and Wilkinson roads
  • In the 1970s, District of Saanich adopted a program of land acquisition and protection for the watershed, resulting in the almost complete protection of the creek corridor by 2013
  • Salmon were once so numerous during spawning season in the Colquitz that farmers speared them and tossed them on their fields for fertilizer

About the Colquitz River

Plans and Reports

Colquitz River Environment



Emergency Contacts

Emergency Management of BC 1.800.663.3456
Report a Spill