The Watch House is a Tsleil-Waututh led declaration of Indigenous law and a practice of culture and spirituality based around a watch-house structure that will be built and stand in the way of the Kinder Morgan pipeline.

The mobilization, led by Tsleil Waututh spiritual and cultural leaders, includes the building of a "watch house" grounded in the culture of the Coast Salish peoples, who, in the past would use watch houses to monitor their enemies and prepare to defend themselves in case of attack.