Fraser Canyon Landslides Research Flags Sites of Concern

Worked wrapped up in 2024 on a three-year partnership project “Landslide impact on flow dynamics, fish migration and genetics of Fraser River salmon.” The work focused on how past and present slides in the Fraser River Canyon have affected river flows and subsequent migrating salmon populations.

Key findings include:

• 279 landslide events were identified in the Fraser River corridor as having occurred since the last glacial retreat
• Four types of landslides were identified as a hazard to fish migration
• 13 sites of concern were identified where a new landslide could have a significant impact on salmon migration success (for a snapshot, see the poster flagging these locations)

The Fraser Basin Council was pleased to have led project outreach and partnered with the Fraser Salmon Management Council to liaise with Canyon First Nations communities.

Photo: Research team members, 2022